Test Preparation on Hydrocarbon-I-Chemistry Test Series For NEET-2020

1.

The most important method of preparation of hydrocarbons of
lower carbon number is

1Pyrolysis of higher carbon number hydrocarbons
2Electrolysis of salts of fatty acids
3Sabatier and Senderen's reaction
4Direct synthesis

2.

Solid methane is

1
Molecular solid
2
Ionic solid
3
Covalent solid
4
Not possible

3.

Sample of 2, 3-dibromo-3-methylpentane is heated with zinc
dust. The resulting product is isolated and heated with HI in the
presence of phosphorus. Indicate which is the structure that
represent the final organic product formed in the reaction

1A
2B
3C
4D

4.

Which is the best antiknock compound or Which one of the
following substances is used as an antiknock compound

1Lead tetrachloride
2Lead acetate
3Zinc ethyl
4Tetraethyl lead (TEL)

Tetraethyl lead (TEL) is an anti-knocking compound
when mixed with petrol tend to improve the octane no.
and therefore, decreases the knocking in the cylinder of
the combustion engine.

5.

In the commercial gasolines, the type of hydrocarbons which
are more desirable is

1Branched hydrocarbon
2Straight-chain hydrocarbon
3Linear unsaturated hydrocarbon
4Toluene

Branched hydrocarbons are more desirable because
they are more volatile and have high octane number.


Right Ans	Wrong Ans	Not Attempted

Test Preparation on Hydrocarbon-I-Chemistry Test Series For NEET-2020

The most important method of preparation of hydrocarbons oflower carbon number is

Solid methane is

Sample of 2, 3-dibromo-3-methylpentane is heated with zincdust. The resulting product is isolated and heated with HI in thepresence of phosphorus. Indicate which is the structure thatrepresent the final organic product formed in the reaction

Which is the best antiknock compound or Which one of thefollowing substances is used as an antiknock compound

In the commercial gasolines, the type of hydrocarbons whichare more desirable is

Check your progress:

The most important method of preparation of hydrocarbons of
lower carbon number is

Sample of 2, 3-dibromo-3-methylpentane is heated with zinc
dust. The resulting product is isolated and heated with HI in the
presence of phosphorus. Indicate which is the structure that
represent the final organic product formed in the reaction

Which is the best antiknock compound or Which one of the
following substances is used as an antiknock compound

In the commercial gasolines, the type of hydrocarbons which
are more desirable is