Organic Chemistry MCQ Questions with Answers

Ques: 31

Cetane number is used as a quality parameter mainly for which of the following?

(A) Petrol (B) Kerosene (C) Diesel (D) Turpentine Oil

Ques: 32

The fuel used in a diesel engine :

(A) Vapour of diesel and air (B) Diesel only (C) Mixture of diesel and petrol (D) Mixture of diesel, air and petrol

Ques: 33

Which of the following is correctly matched?

List-I List - II
Biogas - Insecticide
Electrocardiography - Heart disorder
D.D.T. - Cow-dung
Nicotine - Tobacco

Code :

(A) 1, 2 and 4 (B) 2, 3 and 4 (C) 2 and 3 (D) 2 and 4

Ques: 34

Which one of the following chemicals helps in fruit ripening?

(A) Ethephon (B) Atrazine (C) Isoproturan (D) Malathion

Ques: 35

Which of the following chemicals is used for ripening?

(A) Sodium Chloride (B) Calcium Carbide (C) Potassium Chloride (D) None of the above

Ques: 36

Glycol is used to manufacture which of the following?

(A) Nylon (B) Artificial Silk (C) Terylene (D) Rubber

Ques: 37

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

(A) Acetylene and Hydrogen (B) Oxygen and Acetylene (C) Hydrogen and Oxygen (D) Hydrogen and Helium

Ques: 38

Consider the following statements about acetylene :

It is used in welding industry.
It is a raw material for preparing plastics.
It is easily obtained by mixing silicon carbide and water.
Of these statements

(A) 1 and 2 are correct (B) 1 and 3 are correct (C) 2 and 3 are correct (D) 1, 2 and 3 correct

Ques: 39

For benzene which of the following statements is true?

(A) It has six sigma and six pi bonds (B) It has twelve sigma and six pi bonds (C) It has twelve sigma and three pi bonds (D) It has six sigma and three pi bonds

Ques: 40

Natural rubber is a polymer of –

(A) Butadiene (B) Ethylene (C) Isoprene (D) Styrene