0

Carbon and its Compounds (Class-X)

Description: Class X science all interior questions help you to find the depth of the knowledge on the chapters
Number of Questions: 25
Created by:
Tags: SCIENCE CBSE X CBSE-IX CBSE science X Science IX Science IX Biology X Biology IX Science Questions X Science Questions ICSE Carbon and its Compounds Carbon- Bonding and Structural Properties Saturated and Unsaturated Hydrocarbons Alkanes Functional Groups
Attempted 0/25 Correct 0 Score 0

The purest allotropic form of carbon is

  1. graphite.

  2. coal.

  3. charcoal.

  4. diamond.


Correct Option: A

Compounds of carbon with hydrogen are called

  1. carbohydrates.

  2. carbonates.

  3. hydrocarbons.

  4. fats.


Correct Option: C
Explanation:

Compounds made of Hydrogen and Carbon are called Hydrocarbons.

The unique property of carbon compound to combine with one another is called

  1. covalent bonding.

  2. catenation.

  3. addition reaction.

  4. None of these


Correct Option: B

I U P A C name of saturated hydrocarbons is

  1. alkene.

  2. alkyne.

  3. alkane.

  4. aldehyde.


Correct Option: C

In homologous series two successive members differ in their formula by

  1. CH3

  2. CH

  3. CH2

  4. C2H2


Correct Option: C

A group of atoms that determines the chemical properties of a carbon compound is called

  1. homologue.

  2. paraffins.

  3. functional group.

  4. alkyles.


Correct Option: C

Power alcohol is used as fuel in many countries in vehicles. It is mixture of

  1. petrol and alkane.

  2. petrol and alkene.

  3. petrol and ethyle alcohol.

  4. ethanol and methanal.


Correct Option: C

Halogenation of alkanes can be carried out in

  1. dark.

  2. UV light.

  3. diffused sun light.

  4. bright light.


Correct Option: C

The first organic compound prepared by Wohler was

  1. methane.

  2. urea.

  3. alcohol.

  4. ketones.


Correct Option: B

The pair of compounds representing isomers is

  1. methane and ethane.

  2. propane and butane.

  3. butene-1 and butene-2.

  4. propene and butene.


Correct Option: C

An example of cyclic carbon compound is

  1. cyclobutane.

  2. cyclopropane.

  3. cyclopentane.

  4. All of the above


Correct Option: D

A yellow sooty flame with lots of smoke is produced by

  1. saturated hydrocarbons.

  2. ethyne.

  3. liquefied petroleum gas.

  4. butane.


Correct Option: B

Glaceial acetic acid is a mixture of

  1. 90 percentage acetic acid and 10% water.

  2. 100% acetic acid.

  3. 50% acetic acid and 50% water.

  4. 10% acetic acid and 90% water.


Correct Option: B

Complete combustion of hydrocarbon produces

  1. CO and water.

  2. CO and Hydrogen.

  3. CO2 and H2.

  4. CO2 and H2O.


Correct Option: D

Soap solution appears milky because

  1. soap micelles are small and are not able to scatter beam of light.

  2. soap solution form emulsion.

  3. soap micelles are very large and scatter beam of light.

  4. None of these


Correct Option: C

When ethanol is heated with conc. H2SO4 at 443 K, the products formed are

  1. ethane and water.

  2. ethene and water.

  3. ethyne and water.

  4. ethanol and water.


Correct Option: B

Curdy white precipitates formed, when soap solution is used with hard water, is due to

  1. calsium and magnesium ions present in hard water.

  2. potassium and sodium ions present in hard water.

  3. calcium and sodium ions present in hard water.

  4. magnesium and potassium ions present in hard water.


Correct Option: A

The functional group present in propanone is

  1. carboxyl group.

  2. aldehyde group.

  3. ketonic group.

  4. alcoholic group.


Correct Option: C

n-Pentane and iso pentane represent

  1. homologues.

  2. structural isomers.

  3. same compound.

  4. different compound.


Correct Option: B

A reaction between acid and alcohol results in the formation of

  1. carboxyllic acid.

  2. an aldehyde.

  3. a sweet smelling ester.

  4. a sweet smelling ester and water.


Correct Option: D

The main constituent of wine and beer is

  1. ethyl alcohol and water.

  2. ethyl alcohol.

  3. methyl alcohol.

  4. mixture of ethyl and methyl alcohol.


Correct Option: B

Raw material required for the preparation of soap is

  1. vegetable oil.

  2. sodium hydroxide.

  3. sodium chloride.

  4. All of the above


Correct Option: D

A synthetic detergent molecule consists of

  1. ionic part which is water attracting.

  2. long chain hydrocarbon part which is hydrophobic.

  3. ionic part which is water repelling and hydrocarbon part which is water attracting.

  4. Both 1 and 2


Correct Option: D

Conversion of ethene in to ethane is an example of

  1. addition reaction.

  2. substitution reaction.

  3. oxidation reaction.

  4. esterification.


Correct Option: A

The oxidizing agents used to convert alcohol into acid are

  1. Alkaline KMnO4

  2. Acidified KCr207

  3. H2SO4

  4. a & b both


Correct Option: D
- Hide questions