MCQ Questions for Class 12 Engineering Chemistry Amines Quiz 13

The correct increasing order of basic strength of the labelled N ?

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II
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IV
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I
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III

The order of basicity of amines in gaseous state is :-

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$3^{o} > 2^{o} > NH_{3} > 1^{o}$
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$1^{o} > 2^{o} > 3^{o} > NH_{3}$
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$NH_{3} > 1^{o} > 2^{o} > 3^{o}$
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$3^{o} > 2^{o} > 1^{o} > NH_{3}$

The correct increasing order of basic strength of the labeled N is?

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1 < 2 < 3 <4
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4 < 3 < 2 < 1
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1 < 3 < 4 < 2
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1 < 2 < 4 < 3

Amoung the following compounds, the increasing order of their basic strength is :

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$(I) > (II) < (IV) < (III)$
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$(I) > (II) < (III) < (IV)$
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$(II) > (I) < (IV) < (III)$
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$(II) > (I) < (III) < (IV)$

$'C'$ contain Na then

$'B'$ is

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Diazonium tetrafluoroborate
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Oil of mirbane
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Aniline
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Diazonium chloride.

In the following compound the order of basicity is ?

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$IV>I>III>II$
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$III>I>IV>II$
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$II>I>III>IV$
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$I>III>II>IV$

Which of the following compounds gives secondary amine on reduction.

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Alkyt Nitrite
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Carbylamine
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Alkyl Cyanide
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Secondary nitro compound

The reaction gives as final product

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a primary amine
0%
a secondary amine
0%
a tertiary amine
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a quaternary ammonium salt

Which of the following order of basic character are correct ?

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$p-CH_3O.C_6H_4NH_2 > o-CH_3O.C_6H_4NH_2 > m-CH_3O.C_6H_4NH_2$
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$p-CH_3O.C_6H_4NH_2 > m-CH_3O.C_6H_4NH_2 > o-CH_3O.C_6H_4NH_2$
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$o-CH_3O.C_6H_4NH_2 > p-CH_3O.C_6H_4NH_2 > m-CH_3O.C_6H_4NH_2$
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$o-CH_3O.C_6H_4NH_2 > m-CH_3O.C_6H_4NH_2 > p-CH_3O.C_6H_4NH_2$

Strength of acid increases with the attachment of group showing

$-I$ effect and decrease with the attachment of group showing

$+I$ effect. Which of the following is the correct sequence of basic strength in an aqueous solution?

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$CH_{3}NH_{2}<\left(CH_{3}\right)_{2}NH<\left(CH_{3}\right)_{3}N$
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$\left( { CH }_{ 3 } \right) _{ 2 }NH<{ CH }_{ 3 }{ NH }_{ 2 }<\left( CH_{ 3 } \right) _{ 3 }N$
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$(CH_{3})_{3}N<\ (CH_{3})_{2}NH<\ CH_{3}NH_{2}$
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$(CH_{3})_{3}N<\ CH_{3}NH_{2}<\ (CH_{3})_{2}NH$

What is the increasing order of basic strength of the following compounds in aqueous solutions?

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$III < I < II < IV$
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$I < II < IV < III$
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$I < II < III < IV$
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$III < I < IV < II$

Among the labelled nitrogen atoms, which one is least basic?

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a
0%
b
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c
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d

The increasing order of diazotization of the above compounds is:

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$(D) < (C) < (B) < (A)$
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$(A) < (D) < (B) < (C)$
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$(A) < (B) < (D) < (C)$
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$(C) < (D) < (B) < (A)$

Which nitrogen is most basic?

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$1$
0%
$2$
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$3$
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$All\ are\ equally\ basic$

In compound (X), the correct order of basic strength nitrogen atoms is:

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$a>c>d$
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$a>b>c$
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$c>b>a$
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$b>c>a$

The increasing basicity under of the following compounds is :

$(A)$

$CH_3CH_2NH_2$

$(B)$

$CH_3CH_2\overset{\,\,\,\,\,\,\,\,\,\,\,CH_2CH_3} {\overset{|\,\,\,\,\,}{NH}}$

$(C)$

$H_3C-\overset {\,\,\,\,\,\,CH_3}{\overset{|}{N}}-CH_3$

$(D)$

$Ph-\overset {\,\,\,\,\,\,CH_3}{\overset{|}{N}}-H$

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$D < C < A < B$
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$A < B < D < C$
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$A < B < C < D$
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$D < C < B < A$

Explanation

$(C_2H_5)_2NH > C_2H_5{NH}_2 > (CH_3)_3-N > Ph-\overset{\overset {\displaystyle \,\,\,\,\,\,\,\, {CH}_3}{|}}{N}-H$

-I effect of phenyl decreases basicity. Rest all alkyl group show +I effect and their basicity order is as mentioned above. Hence option A is correct

In the following compound, the favourable site/s for protonation is/are:

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(b), (c) and (d)
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(a)
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(a) and (e)
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(a) and (d)

Explanation

Localised lone pair

$e^-$ are favourable sites for protonation. So, the answer would be b, c and d since lone pair are localised in this case.

The correct increasing order of basic strength of the labelled N:

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I < II < III< IV
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II < I < III < IV
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I < III< IV < II
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I < II< IV< III

Arrange the following amines in the decreasing order of basicity:

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$II > II > III$
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$III > II > I$
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$I > III > II$
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$III > I > II$

Find the correct order of basicity

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$a > b > c$
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$b > c > a$
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$b > a > c$
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None of these

The major product of the following reaction is:

Arrange the following amines in the decreasing order of their basic strength: Aniline (I), Benzylamine (II), p-toluidine (III)

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I > II > III
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III > II > I
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II > I > III
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II > III > I

Which of the following order is not correct?

The correct order of basic strength of the following amines is:

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$(C_{2}H_{5})_{2}NH>C_{2}H_{5}NH_{2}>NH_{3}>C_{6}H_{5}NH_{2}$
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$C_{2}H_{5}NH_{2}>(C_{2}H_{5})NH>NH_{3}>C_{6}H_{5}NH_{2}$
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$(C_{2}H_{5})_{2}NH>NH_{3}>C_{2}H_{5}NH_{2}>C_{6}H_{5}NH_{2}$
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$(C_{2}H_{5})_{2}NH>C_{6}H_{5}NH_{2}>C_{2}H_{5}NH_{2}>NH_{3}$

Among the following which is the strongest base:

The increasing order of diazotisation of the following compounds is:

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(a) < (d) < (b) < (c)
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(d) < (c) < (b) < (a)
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(a) < (b) < (c) < (d)
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(a) < (d) < (c) < (b)

Which of the following is weakest base ?

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0%
$CH_3-CH=NH$
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0%

The correct order of basicity for PYRROLE (A), PYRIDINE (B), PIPERIDINE(C) is:

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A > B > C
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C > B > A
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B > C > A
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C > A > B

Treatment of cyclobutylmethyl amine with nitrous acid does not give.

Which failed to form Osazone with excess of

$C_{6}H_{5}NHNH_{2}$ in strongly alkaline medium?

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D-glucose
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D-Mannose
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All of these

The test used to distinguish primary, secondary and tertiary amines is

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Sandmayer's reaction
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Carbylamine reaction
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Mustard oil test
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$C_{6}H_{5}SO_{2}Cl$

Which compound can show nitrogen flipping?

What is the order of basicity?

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$I > II$
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$II > I$
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$II = I$
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$I \ge II$

Among the following compound, the most basic compound is:

In each of the following pair of compounds, which is more basic in aqueous solution?
Give an explanation for your choice:

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${CH}_{3}{NH}_{2}$ or ${CF}_{3}{NH}_{2}$
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0%
${CH}_{3}{CH}_{2}{CH}_{2}{NH}_{2}$ or ${CH}_{3}CN$
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${C}_{6}{H}_{5}N{({CH}_{3})}_{2}$ or 2,6-dimethyl-N-N-dimethylaniline

Select the correct order of decreasing basicity of the following compounds:-

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II > I > III > IV
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I >III > II > IV
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III > I > II >IV
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I > II > III >IV

Examine the following structures:
Which of the following statement is correct:

$(A) CH_3-C-OH;$

$(B)CH_3-C-NH_2$

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$A$ is tertiary alcohol while $B$ is tertiary amine
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$A$ is primary alcohol while $B$ is primary amine
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$A$ is tertiary alcohol while $B$ is primary amine
0%
$A$ is primary alcohol while $B$ is tertiary amine

Explanation

A is tertiary alcohol becuase the $OH$ group is attached to a tertiary carbon atom (carbon attached to three other carbon atoms) while B is primary amine where nitrogen is attached to one alkyl chain.

Hence option A is correct.

Correct basic character order of following compounds is ?
i) Acetanilide
ii) Acetamide
iii) Aniline
iv) Benzylamine
v) Pyridine

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i > ii > iii > iv > v
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v > iii > ii > iv > i
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iv > v > iii > ii > i
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iv > v > iii > i > ii

An organic compound (X) was heated with chloroform and alcoholic KOH to form compound (Y). (Y) on reduction gave N-methylpropan-2-amine. Compound (X) is

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$(CH_3)_2CHCH_2NH_2$
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$CH_3CH_2CH_2NH_2$
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$(CH_3)_2CHNH_2$
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$CH_3CH_2NHCH_3$

Correct order of boiling of the following amines
Primary amine (I),
Secondary amines (II) ,
and tertiary amine (III)

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(I) > (II) > (III)
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(III) > (II) > (I)
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(II) > (III) > (I)
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(II) > (I)> (III)

Rank the following in increasing basic nature:

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III>I>II>IV
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I>III>II>IV
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IV>II>III>I
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I>III>IV>II

Among the following pair of compounds correct basic strength order is?

Compare basic strength of following:

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$A> B> C$
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$B> A> C$
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$B> C> A$
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$C> B> A$

Correct order of basicity of marked N in following compound is

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1 > 2> 3
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2 > 1 > 3
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2 > 3 > 1
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3 > 2 > 1

Which of the following is not correct?

which one of the following will be most basic?

$X \xrightarrow{{N{H_2}}}{C_4}{H_9}ON\xrightarrow[{KOH}]{{B{r_2}}}C{H_3}C{H_2}C{H_2}N{H_2}$ Compound (x) is

Arrange the following molecules in the descending order of basicity :

$\eqalign{ & {\text{I)}}{C_6}{H_5}N{H_2}\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;{\text{II}}){\text{m}} - {\text{N}}{{\text{O}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{4}}}{\text{N}}{{\text{H}}_{\text{2}}} \cr & {\text{III)p}} - {\text{N}}{{\text{O}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{4}}}{\text{N}}{{\text{H}}_{\text{2}}}\;\;\;\;\;{\text{IV)}}\;{\text{o}} - {\text{N}}{{\text{O}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{4}}}{\text{N}}{{\text{H}}_{\text{2}}} \cr}$

0%
IV > III > II > I
0%
I > III > IV > II
0%
I > II > III > IV
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III > I > IV > II

The most basic amine is:

Weakest base among the following is:

CBSE Questions for Class 12 Engineering Chemistry Amines Quiz 13 - MCQExams.com

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CBSE Questions for Class 12 Engineering Chemistry Amines Quiz 13 - MCQExams.com

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Practice Class 12 Engineering Chemistry Quiz Questions and Answers

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