September 29, 2014

Quiz 12- Chemistry-General Science: General Knowledge Question & Answers

111 Q) A person is weak, sterile and has very poor eyesight. These are the symptoms because of a pollutant

(a) copper
(c) magnesium
(d) lead

112 Q) In modern days, which one of the following chemical compounds is used for the hair setting in beauty parlour/ salon?

(a) A phosphate compound
(b) A sulphur compound
(c) A magnesium compound
(d) A bicarbonate compound

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113 Q) "The gas used in a refrigerator is "

(a)cooled down on flowing
(b)heated up on flowing
(c)cooled down when compressed
(d)cooled down when expanded

114 Q) Which one of the following is not an ore?

(a) Bauxite
(b) Pig iron
(c) Malachite
(d) Zinc blende

115 Q) Which one of the following is used to measure the performance of a motor or gasoline, an aviation fuel?

(a) Iodine number
(b) Octane number
(c) Both 'a' and 'b'
(d) Neither 'a' nor 'b'

116 Q) The number of spectral lines when electron jumps from 5th energy level to 2nd energy level state will be

(a) 5
(b) 10
(c) 6

117 Q) Match the Following 
List 1  (Polymers)
List II  (Monomers)
A. Nylon-6
1. para-phenylenediamine + Terephthaloyl chloride
B. Kevlar
2. Caprolactum
C. Nylon-66
3. Hexamethylene diamine + Adipic acid
D. Bakelite
4. Phenol + Formaldehyde
(a) 2 1 3 4
(b) 2 3 4 1
(c) 3 4 2 1
(d) 3 1 2 4

118 Q) Which one of the following is the metallurgical operation in which a metal is obtained in a fused state?

(a) Calcination
(c) Froth floatation

119 Q) "What is the role of positive catalyst in chemical reaction? "

(a) It increase the rate of reaction
(b) It decrease the rate of reaction
(c) It increases the yield of the products
(d) It provides better purity of the products

120 Q) "Consider the following statements. Loss of  beta- particle is equivalent to 
I.increase in one proton only. 
II.decrease in one neutron only. 
Which of the statements given above is/are correct?"

(a) Only I
(b) Only II
(c)Both I and II
(d) Neither I nor II


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