The ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster

The ionic end of soap is on the interior of the cluster the carbon chain is out of the cluster.

Both ionic end and carbon chain are in the interior of the cluster

Both ionic end and carbon chain are on the exterior of the cluster

5-8% solution of acetic acid in water

25-30% solution of acetic acid in water

40-45% solution of acetic acid in water

45-50% solution of acetic acid in water

MCQ Questions for Class 10 Chemistry Carbon And Its Compounds Quiz 3

Unsaturated hydrocarbons undergo:

0%
a substitution reaction
0%
an oxidation reaction
0%
an addition reaction
0%
none of the above

Explanation

Unsaturated hydrocarbons contain either double or triple bonds, which are reactive, so they break easily and convert into single covalent bonds, hence they easily undergo addition reactions.

Example of addition reaction is:

$CH_2=CH_2 + H_2\xrightarrow{Ni-catalyst} CH_3-CH_3$

The general formula for alkane is :

0%
$C_nH_{2n}$
0%
$C_nH_{2n-2}$
0%
$C_nH_{2n+2}$
0%
$C_nH_{2n+1}$

Explanation

The general formula for alkane is

$C_nH_{2n+2}$ .
Some of alkanes are,

$C_3H_8-$ propane

$C_5H_{10}-$ pentane

$C_2H_6-$ ethane

$CH_4-$ methane

State whether the statement is true or false:

A homologous series is a family of hydrocarbons with different chemical properties that share the same general formula.

0%
True
0%
False

In the presence of concentrated sulphuric acid

$(H_2SO_4)$ , acetic acid reacts with ethyl alcohol to produce :

0%
aldehyde
0%
alcohol
0%
ester
0%
carboxylic acid

Explanation

${ CH }_{ 3 }COOH$ +

${ CH }_{ 3 }{ CH }_{ 2 }OH$

$\underrightarrow { Conc{ H }_{ 2 }{ SO }_{ 4 } }$

${ CH }_{ 3 }COO{ C }_{ 2 }{ H }_{ 5 } +{ H }_{ 2 }{ O }$
During esterification, oxygen of alcohol is found in main product that is nothing but ester. This indicates that H of alcohol is eliminated as water molecule.

Give the IUPAC name for

$H_3C\! -\! CH_2\! -\! CH_2\! -\! OH$ .

0%
Propanal
0%
Propanol
0%
Propionic acid
0%
Propane

Explanation

As it contains 3 carbon chain and the functional group is alcohol so the name of the compound will be propanol.

$H_3C\! -\! CH_2\! -\! CH_2\! -\! OH$

Oils on treatments with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of :

0%
addition reaction
0%
substitution reaction
0%
displacement reaction
0%
oxidation reaction

Draw the electron dot structure for oxygen molecule.

Explanation

Option

$B$ shows the lewis structure of

$O_2$ molecule.

1379670_245321_ans_f6ac4f3923ae428e829e91abbdf2096a.png

Carbon is used as abrasive as well as a __________.

0%
drying agent
0%
lubricant
0%
explosive
0%
none of these

When ethanol react with sodium,which gas will produce?

0%
hydrogen
0%
oxygen
0%
sodium ethoxide
0%
carbon dioxide

Explanation

If a small piece of sodium is dropped into some ethanol, it reacts steadily to give off bubbles of hydrogen gas and leaves a colourless solution of sodium ethoxide, $CH_3CH_2ONa$ and hydrogen gas is evolved.

$2C_2H_5OH + 2Na \rightarrow 2C_2H_5ONa + H_2$

Option A is correct.

Which of the following is not a saturated hydrocarbon?

0%
Cyclohexane
0%
Benzene
0%
Butane
0%
Pentane

State True or False:

Statement : The polar end in soap is called hydrophilic end.

0%
True
0%
False

Carbon forms four covalent bonds by sharing its four valence electrons with univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of :

0%
helium
0%
neon
0%
argon
0%
krypton

In the soap micelles

0%
The ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster
0%
The ionic end of soap is on the interior of the cluster the carbon chain is out of the cluster.
0%
Both ionic end and carbon chain are in the interior of the cluster
0%
Both ionic end and carbon chain are on the exterior of the cluster

Catenation is defined as:

0%
formation of double bond between carbon atoms.
0%
linking of carbon atoms with of atoms other elements.
0%
linking of carbon atoms with other carbon atoms to form a long chain
0%
the formation of four covalent bonds by a carbon atom.

Which of the following compounds will fall in the same homologous series of formic acid

$(H-COOH)$ ?

0%
$CH_3COOH$
0%
$CH_3COCH_3$
0%
$CH_3CHO$
0%
None of the above

Explanation

The given formula is the starting member of the carboxylic acid series.

The formulae for the members of homologous series of carboxylic acid which begins with

$\displaystyle HCOOH$ are:

$\displaystyle HCOOH, CH_3COOH, CH_3CH_2COOH, CH_3CH_2CH_2COOH, CH_3CH_2CH_2CH_2COOH$ and so on.

Hence, the correct option is A.

What change will you observe if you test soap with litmus paper (red and blue)?

0%
It will turn red litmus blue
0%
It will turn blue to red
0%
Red litmus paper won't change colour
0%
None of these

What are the two properties of carbon which led to the huge number of carbon compounds we see around us?

0%
(i) Catenation (ii) Tetravalency
0%
(i) Catenation (ii) Trivalency
0%
(i) Catenation (ii) Pentavalency
0%
(i) Covalency (ii) Divalency

Test that can be used to differentiate between butter and cooking oil is :

0%
Hydrogenation reaction
0%
Substitution reaction
0%
Oxidation reaction
0%
Double displacement reactions

Explanation

Cooking oil is an unsaturated hydrocarbon which can undergo addition of hydrogen to form saturated hydrocarbon, e.g., alkene to alkane while this hydrogenation addition reaction is not possible for butter or ghee as butter and ghee are saturated hydrocarbons.

${ C }_{ 2 }{ H }_{ 4 }+{ H }_{ 2 } \rightarrow { C }_{ 2 }{ H }_{ 6 }$

Which out of the following has smell similar to that of vinegar?

0%
Methanol
0%
Ethanol
0%
Ethanoic acid
0%
Formic acid

The soap molecule has a

0%
hydrophobic head and a hydrophilic tail
0%
hydrophobic head and a hydrophobic tail
0%
hydrophilic head and a hydrophobic tail
0%
hydrophilic head and a hydrophilic tail

Vinegar is a:

0%
5-8% solution of acetic acid in water
0%
25-30% solution of acetic acid in water
0%
40-45% solution of acetic acid in water
0%
45-50% solution of acetic acid in water

$N{ a }_{ 2 }C{ O }_{ 3 }+2C{ H }_{ 3 }COOH\longrightarrow$

Which gas is produced in this reaction?

0%
${ H }_{ 2 }O$
0%
$CO_2$
0%
$CO$
0%
$H_2$

Explanation

$N{ a }_{ 2 }C{ O }_{ 3 }+2C{ H }_{ 3 }COOH\longrightarrow$ $2CH_3COONa$ + $CO_2$ + $H_2O$

The above is an acid-base reaction, where $CH_3COOH$ is an acid and $Na_2CO_3$ is a base. In this reaction, $CO_2$ gas is evolved.

Therefore, the correct option is $B$

Graphite is used as a lubricant in machines because it has a very high melting point and also it :

0%
is crystalline
0%
has layer structure
0%
is a giant molecule
0%
is a liquid at room temperature

Pentane has the molecular formula $C_{5}H_{12}$ . It has:

0%
10 covalent bonds
0%
12 covalent bonds
0%
16 covalent bonds
0%
17 covalent bonds

Explanation

${ CH }_{ 3 }-{ CH }_{ 2 }-{ CH }_{ 2 }-{ CH }_{ 2 }-{ CH }_{ 3 }$

Pentane has

$12\ C-H$ bonds and

$4\ C-C$ bonds. So, in total it has 16 covalent bonds.

$NaHC{ O }_{ 3 }+C{ H }_{ 3 }COOH\longrightarrow C{ H }_{ 3 }COONa+C{ O }_{ 2 }+{ H }_{ 2 }O$ ,

This reaction is used as a test of carboxylic acid because :

0%
gas is confirmed when it turns lime water black
0%
gas is confirmed when it turns lime water milky
0%
gas is confirmed when it turns lime water light green
0%
gas is confirmed when it turns lime water brown

Which of the following is not a use of graphite ?

0%
Lubricant
0%
Electrodes
0%
Black paints
0%
High precision thermometers

Explanation

Graphite is a good conductor of electricity but cannot conduct heat hence it is used as electrodes in numerous cells but cannot be used in high precision thermometers.

Whereas the diamond can conduct heat, therefore, it can be used in high precision thermometers.

So, the correct option is

$D$

_______ is a versatile solvent and is easily miscible with water.

0%
Water
0%
Ethanol
0%
Petrol
0%
Ether

In diamond, the bonding between carbon atoms is :

0%
co-ordinate
0%
ionic
0%
hydrogen
0%
covalent

Explanation

In diamond, each carbon atom is covalently bonded to four other carbon atoms. A lot of energy is needed to separate the atoms in diamond.

This is because covalent bonds are strong and diamond contains many covalent bonds.

Hence, the correct option is

$D$

The first fullerene was discovered in :

0%
$1970$
0%
$1967$
0%
$1997$
0%
$1985$

Density of graphite is :

0%
$0.5\ g/cm^3$
0%
$2.266\ g/cm^3$
0%
$1.08\ g/cm^3$
0%
none of the above

Explanation

Crystal density of graphite is

$2.266 g/cm^3$ as compared with

$3.53 g/cm^3$ for diamond.
In the graphite structure, only three of the four valence electrons of carbon form regular covalent bonds with adjacent carbon atoms.

CBSE Questions for Class 10 Chemistry Carbon And Its Compounds Quiz 3 - MCQExams.com

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Practice Class 10 Chemistry Quiz Questions and Answers

CBSE Questions for Class 10 Chemistry Carbon And Its Compounds Quiz 3 - MCQExams.com

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Practice Class 10 Chemistry Quiz Questions and Answers

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