
Which one of the following is the correct sequence in the increasing order of molecular weights of the hydrocarbons?


Important Questions on Organic Chemistry
Consider the following chemicals:
. Benzene
. Carbon tetrachloride
. Sodium carbonate
. Trichloroethylene
Which of the above is/are used as dry cleaning chemicals?

Consider the following statements:
The trade names of benzene hexachloride (BHC) are Lindane and Gammexane.
Gammexane is used as a pesticide in agriculture.
Which of the statement(s) given above is/are correct? Select the correct answer using the codes below.


Consider the following statements regarding rocket fuel.
1. Liquid propellants are alcohol, liquid hydrogen, kerosene etc.
2. Hybrid propellant consists of solid fuel.
Which of the statement(s) given above is/are incorrect?

Which of the following is correct?
1. Full form of CNG is compressed natural gas.
2. Full form of LPG is liquefied petroleum gas.
Choose the correct option.

Consider the following statements regarding biocatalysts,
Biocatalysts are enzyme.
All proteins are biocatalysts.
Biocatalysts are minerals.
Which of the statement(s) given above is/are correct?

Consider the following statements:
Ethyl acetic acid is a colourless neutral liquid with a characteristic fruity odour.
Urea is the final decomposition product of proteins and occurs in urine.
Which of the statement(s) given above is/are correct? Select the correct answer using the codes below.

Consider the following statements,
1. Wood, coal and charcoal are solid fuels.
2. Methane, butane and hydrogen are gaseous fuels.
3. Kerosene, petrol and ethyl alcohol are liquid fuels.
Which of the following fuel has maximum calorific value?
