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Assertion & Reason Test: Carbon & Its compounds - 1 - Class 10 MCQ


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10 Questions MCQ Test Online MCQ Tests for Class 10 - Assertion & Reason Test: Carbon & Its compounds - 1

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Assertion & Reason Test: Carbon & Its compounds - 1 - Question 1

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Most of the carbon compounds are good conductors of electricity.

Reason (R): They do not dissociate to form ions and remain as molecules.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 1
Carbon compounds are mainly poor conductors of electricity.
Assertion & Reason Test: Carbon & Its compounds - 1 - Question 2

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Iso- butane is the isomer of C4H10.

Reason (R): Iso-butane has four C and ten-H atoms.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 2

is the structural isomer of butane.

Assertion & Reason Test: Carbon & Its compounds - 1 - Question 3

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion: Following are the structural isomers of butane.

Reason: Structural isomers have the same molecular formula but they differ in their structures.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 3

Isomers are defined as those compounds that possess the same molecular formula but different structural arrangement. Butane has the molecular formula C4H10. Therefore, the structural isomers of butane will be n-butane and iso-butane.

Assertion & Reason Test: Carbon & Its compounds - 1 - Question 4

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.

Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 4

In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH. The difference between the molecular masses of the two consecutive members of a homologous series is 14 because a -CH2 group has a molecular mass of 14 amu.
Hence, the correct answer is the assertion is true and Reason is false.

Assertion & Reason Test: Carbon & Its compounds - 1 - Question 5

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Third member of alkane is propane (C3H8)

Reason (R): It is obtained from general formula CnH2n + 2

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 5
C3H8 can be obtained from the general formula, CnH2n + 2.
Assertion & Reason Test: Carbon & Its compounds - 1 - Question 6

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Following are the members of a homologous series : CH3OH, CH3CH2OH, CH3CH2CH2OH

Reason (R): A series of compounds with the same functional group but differing by ––CH2 – unit is called a homologous series.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 6
A homologous series is a group of compounds that differ by a constant unit, generally a CH2 group.
Assertion & Reason Test: Carbon & Its compounds - 1 - Question 7

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): CH3Cl is obtained from CH4 by the action of Cl2 in the presence of sunlight.

Reason (R): It is obtained by an additional reaction.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 7
CH3Cl is obtained from CH4 by substitution reaction by the action of Cl2 in the presence of sunlight.
Assertion & Reason Test: Carbon & Its compounds - 1 - Question 8

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): In esterification, carboxylic acid and alcohol react in the presence of acid to give ester.

Reason (R): Esterification is the reverse of saponification.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 8
In esterification, RCOOH, – H is replaced by – R' of R'OH in the presence of acid to form RCOOR'.
Assertion & Reason Test: Carbon & Its compounds - 1 - Question 9

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Acetic acid has six single bonds and one double bond.

Reason (R): It is an unsaturated organic compound.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 9
Acetic acid has a structure which has six single bonds and only one double bond. It is an unsaturated organic compound.

Assertion & Reason Test: Carbon & Its compounds - 1 - Question 10

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A): Esterification is a process in which a sweet smelling substance is produced.

Reason (R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.

Detailed Solution for Assertion & Reason Test: Carbon & Its compounds - 1 - Question 10

Esterification is a reaction in which alcohol like ethanol reacts with carboxylic acids to form esters and water in the presence of sulphuric acid. Esters are generally sweet smelling substances

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