Organic Chemistry - Some Basic Principles And Techniques - Class 11 Engineering Chemistry - Extra Questions

What would be the product of 
$$NaOH$$ + $$SiO_2$$ $$\rightarrow$$ ?



Identify $$A, B, C$$ and $$D$$.
878352_dc3d7f6ccff2468f8641debcf295b267.png



How many (x) moles of HI consumed?
991476_23a4fee1ec054313a943475e70a910a2.jpg



Match the column.
Column (I) - $$E_2$$ reaction (elimination biomolecular)
Column (II) - No. of possible products. (including stereoisomerism)



What is the product formed?
1070502_40565f9a8eaa402da72ed738716a1310.png



Find the product of the given reaction.
1073438_71c8682c7c7643739f006a59d35e4ea6.png



Provide a detailed reaction mechanism for the following.
1718955_440a9e4403934d78b94f6442fa35e5b0.png



Fill in the following blanks with suitable words:
The next higher homologue of ethanol is ________.



The next higher homologue of ethane is _______.



Fill in the following blanks with suitable words:
The next homologue of $$C_{2}H_{5}OH$$ is _______



Identify the unknown organic compounds $$(D)$$ to $$(E)$$ in the following series of chemical reactions.
$$(D)\xrightarrow [ \Delta ]{ H_{2}/Ni } (E)$$



Write the next homologue of each of the following:
(i) $$ C_{2}H_{4} $$
(ii) $$ C_{4}H_{6} $$



What is the next homologue of $$ C_{3}H_{7}OH $$ called?



Which two of the following organic compounds belong to the same homologous series?
$$ C_{2}H_{6},C_{2}H_{6}O,C_{2}H_{4}O_{2},CH_{4}O $$



Fill in the blanks:
Propane and ethane are ________



The molecules of alkene family are represented by a general formula $$C_nH_{2n}$$. Answer the following:
Write the molecular formula of lower and higher homologous of an alkene which contains four carbon atoms.



The molecular formula of the first member of a certain group of organic compound is $$CH_{2}O$$. Determine the name and molecular formula of the third member of this group if the member of this group are in series what is the general name of this group of organic compounds?



Find the final product.
878315_6a44baa3108a4f5cbe20a85f427c981a.png



The product is?
1181833_14da28aebd9148eaa8028ceecf3bedbf.png



$$\text{Complete the following table:}$$
$$\text{Name}$$$$\text{Molecular formula}$$$$\text{Condensed structural formula }$$$$\text{Number of carbon atoms }$$$$Number \ of -CH_{2}-units$$
Methane$$CH_{4}$$$$CH_{4}$$11
Ethane$$C_{2}H_{6}$$$$CH_{3}-CH_{3}$$22
Propane$$C_{3}H_{8}$$$$CH_{3}-CH_{2}-CH_{3}$$33
Butane$$C_{4}H_{10}$$$$CH_{3}-CH_{2}-CH_{2}-CH_{3}$$
Pentane$$C_{5}H_{12}$$$$CH_{3}-CH_{2}-CH_{2}-CH_{2}-CH_{3}$$
Hexane$$C_{6}H_{14}$$$$CH_{3}-CH_{2}-CH_{2}-CH_{2}-CH_{2}-CH_{3}$$



Write the name and formula of the 2nd member of homologous series having general formula $${C_n}{H_{2n}}$$.



In homologous series of aldehyde, the consecutive members of the series differ by the mass of:



Alkanes undergo only substitution reactions but alkenes and alkynes undergo both substitution and addition reactions. Why?



What is a homologous series? State any four characteristics of a homologous series?



Name the simplest hydrocarbon.



What will be the correct structural formula of product for the following reaction?
877189_88032be9d1814535beba958112221aaf.png



Explain the nature of $$C-X$$ bond in both the compounds.

877176_05d4ac6dd4e64a7ebb19456ccc560415.png



$$C_{3}H_{6}, C_{4}H_{8}$$ and $$C_{5}H_{10}$$ belong to the same homologous series.
Arrange these hydrocarbons in order of increasing boiling points.



What are homologous series of carbon compounds? Write the molecular formula of two consecutive members of homologous series of aldehydes. State which part of these compounds determines their (i) physical and (ii) chemical properties.



Complete the following reactions:

$$CH_3 - CH_2 - C \equiv CH + H_20 \xrightarrow[40\%H_2SO_4]{1\% HgSO_4}$$



Name the gas evolved in each of the following cases:
(i) Copper carbonate is heated strongly.
(ii) Action of dilute hydrochloric acid on sodium sulphite.
(iii) Nitrogen combines with hydrogen.
(iv) Action of dilute sulphuric acid on sodium carbonate.
(v) Addition of sodium to cold water.



What is a homologous series? Which two of the following organic compounds belong to the same homologous series?
$$C_2H_6, C_2H_6O, C_2H_6O_2, CH_4O$$



$$CH_3-\overset{O}{\overset{||}{C}}-OC_2H_5+NaNH_2\rightarrow$$?



Write the major product in the following.
$$2CH_3 - \underset{Cl}{\underset{|}{C}H} - CH_3 \xrightarrow[dry\, ether]{Na} $$?
$$CH_3 - CH_2 - Br \xrightarrow {AgCN}$$ ?
1030108_2ddfea154e7a4194a61c991a9016f014.png



In the given reaction the product P is:
1036782_7b02eb3aa8fd4773b1884b071a684a25.png



  Identify the product $$C$$.
1033589_3c57499c0e1141eeae9c116b6defb281.png



What will be the major product formed?
1028255_20ae43d8003244f9b2424b838a87c352.png



An aromatic organic compound [A] on heating with $${ NH }_{ 3 }$$ and $${ Cu }_{ 2 }O$$ at high pressure gives [B]. The compound [B] on treatment with ice cold solution of $${ NaNO }_{ 2 }$$ and $$HCL$$ gives [C].Which on heating with $$Cu/HCl$$ gives compound [A] again. Identify the compounds [A], [B] and [C]. Write the name of the reaction for the conversion of [B] to [C] ?



Identify the major product $$P$$ in the following reaction.
1052122_ebf2d3f5b55841a09ce89fa22cec03b2.png



What is the major product obtained from the following reaction?
$$CH_3\underset{\underset{Br}{|}}{C}H-CH_2-CH_3\xrightarrow[Et_2O]{CH_3ONa}$$



What are the products obtained from the following reaction?
1055396_e90b20a76bb64852b04969ab4070df88.png



$$N_{2}H_{4}+ClO_{3}^{-} \rightarrow No+Cl^{-}$$
Balance and complete the reaction.



Write structures of the products A, B, C, D, and E in the following scheme.

1093981_9468f689f95a437e89d24542319ed237.png



In this product A is?
1096204_3865d705f9154ca6a9e0cba4489585c9.jpg



Find X.
1096512_e466ad90d6d349a8b6368990a2d92093.png



The molecular formula of a compound is $$C_{10}H_{18}$$. Name the homologous series to which it belongs.



What is reaction intermediate?



Define homologous series.



(I) Draw the resonating structure of $${ C }_{ 6 }{ H }_{ 5 }{ NO }_{ 2 }$$ and $${ C }_{ 6 }{ H }_{ 5 }OH$$.
(II) Why $$\left( { CH }_{ 3 } \right) _{ 3 }{ C }^{ + }$$ carbocation is more stable than $${ CH }_{ 3 }$$?



Write a balanced equation for
(i) Silicon dioxide is treated with hydrogen fluoride
(ii) Boric acid is added to water
(iii) Diborane reacts with $$NH_{3}$$ followed by heating.



Write mechanisms for the following reaction 
Phtochemical chlorination of methane



Explain the mechanism of the following reaction :


1381005_5499a3113a13423d82bbea57139f65b1.PNG



Write the structure of A,B,C,D,and E in following 
1389064_9f2904b5ae0c40bbb827d034932fa125.PNG



Define Decarboxylation. Methane is formed by decarboxylation



How many $$CO_2$$ will releave in the following reaction 
1449967_cfb53a35a6124232bd9c8697ec4d1d02.jpg



Write the molecular formula of first two members of homologous series having functional group $$-Cl$$.



What happens when Acrylonitrile reacts with 1, 3-butadiene 



Explain the mechanism of the following reaction.
$$C_2H_5 OH \xrightarrow[443 \, K]{Conc. \, H_2SO_4} CH_2 = CH_2 + H_2O$$



Copy and complete the following table which relates to three homologous series of hydrocarbons:
General Formula$$C_n H_{2n}$$$$C_n H_{2n-2}$$$$C_n H_{2n+2}$$
$$IUPAC$$ name of the homologous series
Characteristic bond typeSingle Bond
$$IUPAC$$ name of the first member of the series
Type of reaction with chlorineAddition



What is the difference in the number of carbon and hydrogen atoms between two successive members of a homologous series? Also, give the difference in their atomic masses.



What is the difference between the mass of two successive members of a homologous series of hydrocarbons?



Give one example of homologous series, give two properties of it.



Name the following organic compounds : 
The first homologue whose general formula is $$C_nH_{2n}$$.



Write names of first four homologous series of alcohols :
1911245_57f5022f7b2847739c47169c935eae83.png



Match the reactions in List 1 with appropriate type of steps/reactive intermediates involved in these reactions as given in List 2.



 Find product C in the given reaction.
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Write the mechanism of the following reaction:
471848_0ce87c5db3484a84848ba5321a7d99a3.png



$$3, 3$$-Dimethylbutan- $$2$$- ol loses a molecule of water in the presence of a concentrated sulphuric acid to give tetramethylethylene as a major product. Suggest a suitable mechanism.



Identify the product.
867248_1e057b49a9064d3f929a1ed54c475fc9.png



Which of the following reactions will get affected by increase in pressure? Also mention whether the change will cause the reaction to go to the right or left direction.
$$CH_4(g) \,+\, 2S_2(g) \rightleftharpoons CS_2(g) \,+\, 2H_2S(g)$$
$$CO_2(g) \,+\, C(s) \rightleftharpoons 2CO(g)$$
$$4NH_3(g) \,+\, 5O_2(g) \rightleftharpoons 4NO(g) \,+\, 6H_2O(g)$$
$$C_2H_4 (g) \,+\, H_2(g) \rightleftharpoons C_2H_6(g)$$
$$COCl_2(g) \rightleftharpoons CO(g) \,+\, Cl_2(g) $$
$$CaCO_3 (s) \rightleftharpoons CaO(s) \,+\, CO_2(g)$$



What is the major product of the following reaction? 
1021278_5e5097f5419f4237935d6a6e516d1be8.png



What is the Major product in the following reaction?
1021348_20fa9c84cb814f728b85651f58f5bdbc.png



What is the major product in the above reaction?
1021285_3aace188891241c992d56befa3b686e0.png



What is the major product of the following reaction?
1021355_314265daf71445a99069ee66814b8e6d.png



  
1033586_a3c7a9dbec844fc68668dd3c7e6ca377.png



Trichloroethanol may be prepared by the direct reduction of chloral hydrate in water with sodium borohydride. Suggest a mechanism for this reaction. (Warning! Sodium borohydride does not displace hydroxide from carbon atoms!)
1067523_0e6653cfb7bc40f4ae25155fb8b089d4.png



Identify the product $$B$$.
1033587_4cde5b9ba4b54d70916b6b52fa351e7e.png



Visualize the formation of four particles in the given reaction.
1065947_6e3df6bf3f6d41029aa7b82b7e583210.png



.
1067551_7a9678d886b94f199f910dd9f5436758.png



Find $$A$$ and $$B$$?
1067481_def23bf05f774d4aa423d31556cbfc25.png



$$A,A$$ is:
1070212_9fb8956137704439927485b77283bfdc.png



What is the product formed?
1070505_4c36e9c4c01446fa908c7b8059f82d4e.png



Product $$A$$ and $$B$$ formed in the following reactions are respectively.

1068474_ff6baffb58f54d748f0feb823a846627.png



(a) What is a homologous series? Explain with an example.
(b) State two characteristics of a homologous series.
(c) The molecular formula of an organic compound is $$C_{18}H_{36}$$. Name its homologous series.
(d) Select the hydrocarbons which belong to the same homologous series. Give the name of each series.
$$CH_{4}, C_{2}H_{2}, C_{3}H_{4}, C_{2}H_{6}, C_{4}H_{10}, C_{3}H_{4}, C_{3}H_{6}$$.
(e) What is meant by 'heteroatom'? Give examples. Write the names and formulae of two organic compounds containing different heteroatoms.



Match each of the compounds given in Column I with the reaction(s), that they can undergo with one or  or more statement(s), given in Column II.
1722562_79ca93429967433788ef6e3150d4331e.jpg



$$2,2-Dimethyloxirane$$ can be cleaved by acid $$\mathrm{(H^{\oplus})}$$. Write the mechanism.



Match each of the compounds given in Column I with the reaction(s) they can undergo given in Column II.



What is the suitable adsorbent in the process of column chromography?



How do the boiling point and melting point change in the homologous series of alcohols?



What is the difference in the molecular formula of any two adjacent homologues:
in terms of molecular mass.



Give the names and the structural formula of the first three members of the homologous series of alkanes.



Class 11 Engineering Chemistry Extra Questions