General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part18 : 71 to 75

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

71.In fireworks, the green flame is produced because of :

mercury

sodium

potassium

barium

72.Washing soda is the common name for :

Calcium carbonate

Calcium bicarbonate

Sodium carbonate

Sodium bicarbonate

73.Which of the following statements is/are ture ? 1. The process of oxidation leads to a gain of electrons2. The process of oxidation leads to a loss of electrons3. The process of reduction leads to a gain of electrons4. The process of reduction leads to a loss of electrons.

1 only

1 and 4

2 and 3

4 only

74.Which synthetic fibre is known as artifical silk ?

Cotton

Rayon

Terylene

Nylon

75.The gas which had leaked out of Union Carbide factory in Bohopal was :

sulphur dioxide

methyl cyanide