CBSE - Carbon and Its Compounds

1 Carbon and its Compounds 

A strip of copper is placed in four different colourless salt solution. The salt solutions are NaNO₃, Zn(NO₃)₂ , Mg(NO₃)₂, , AgNO₃  Which one of the solution will finally turn blue

(1) AgNO₃ 
(2) Zn(NO₃)₂ 
(3) Mg(NO₃)₂ 
(4) NaNO₃

2 Carbon and its Compounds 

Coal is called fossil fuel because :

(1) In future coal will become completely exhausted
(2) It was formed 300 million years ago
(3) Fossils are obtained along with mining of coal
(4) It was formed from the dead remains of living organisms

3 Carbon and its Compounds 

Which Vitamin is found in abundance in Amla?

(1) Vitamin -A
(2) Vitamin - C
(3) Vitamin - B
(4) Vit amin - D

4 Carbon and its Compounds 

An organic compound 'A' on treating with acidified potassium dichromate solution gives 'B' with molecular mass 60 gm/mol. 'A' on heating with conc. H₂SO₄  of 443 K produces a gas that decolourless bromine water. The compound A is

(1) n-propyl alcohol
(2) iso-propyl alcohol
(3) ethyl alcohol
(4) acetaldehyde

5 Carbon and its Compounds 

The functional group in aldehyde is

(1)   (2)  (3)   (4) 

6 Carbon and its Compounds 

Property of self-combination of the atoms of the same element to form long chains is known as

(1) Protonation
(2) Carbonation
(3) Coronation
(4) Catenation

7 Carbon and its Compounds 

Hydrocarbon 2-methylbutane is an isomer of

(1) n-pentane
(2) n-butane
(3) propane
(4) iso-butanens.

8 Carbon and its Compounds 

In the presence of concentrated sulphuric acid, acetic acid react with ethyl alcohol to produce

(1) aldehyde
(2) alcohol
(3) ester
(4) carboxylic acid

9 Carbon and its Compounds 

The number of carbon atom in kerosene oil is

(1) C₆– C₁₁
(2) C₂₀ – C₃₀
(3) C₁₁ – C₁₆
(4) C₁₈ – C₂₂ 

10 Carbon and its Compounds 

An organic compound which is used to preserve biological specimen is 

(1) ether 
(2) methanal 
(3) ethanal 
(4) ethanol