hydrocarbon, alcohol, polymer, organic acid and explosive substance - Category wise Question and Answer Practice Test with Solutions

Question : 16 [PSC (Pre) 2017]

Consider the following statements about acetylene.

1. It is used in welding industry.
2. It is a raw material for preparing plastics.
3. It is easily obtained by mixing silicon carbide and water.

a) 2 and 3 are correct

b) 1 and 2 are correct

c) 1 and 3 are correct

d) 1, 2 and 3 are correct

Question : 17 [PSC (Pre) 2019]

Which of the following gas mixture is used in welding gas?

a) Hydrogen and Oxygen

b) Acetylene and Hydrogen

c) Oxygen and Acetylene

d) Hydrogen and Helium

Question : 18 [IAS (Pre) 2012]

Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?

a) Oxygen, Calcium, Phosphorus

b) Hydrogen, Oxygen, Sodium

c) Carbon, Hydrogen, Nitrogen

d) Carbon, Hydrogen, Potassium

Question : 19 [UP (Pre) 2009]

Which of the following is not a natural polymer?

a) Starch

b) Cotton

c) Ghee

d) Protein

Question : 20 [UPPCS (Pre) 2014]

Which one of the following is not an explosive?

a) Trinitrotoluene (TNT)

b) Cyclotrimethylene Trinitramine (RDX)

c) Nitrochloroform

d) Trinitroglycerine