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General Science Objective Questions and answer

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7.) The average salinity of sea water is

A.       3%                         B.       3.5%

C.       2.5%                      D.       2%

View Answer

Correct Answer:  B.


8.) What are soaps?

(A) Salts of silicates

(B) Ester of heavy fatty acids

(C) Sodium or potassium salts of heavier fatty acids

(D) Mixture of glycerol and alcohol

View Answer 

Correct Answer: C.


9.) Which of the following is a protein?

(A) Wool                           (B) Starch
(C) Cellulose                     (D) Natural rubber

View Answer

Correct Answer:  D.


 10.) Which of the following is commonly called a polyamide?

(A) Rayon                          (B) Orion
(C) Terylene                       (D) Nylon

View Answer 

Correct Answer: D.


11.) The gas usually filled in the electric bulb is

A. Nitrogen                         B. Hydrogen

C. Carbon dioxide                    D. Oxygen

View Answer

Correct Answer:  A.


12.) Which of the gas is not known as green house gas?

A. Methane                       B. Nitrous oxide

C. Carbon dioxide               D. Hydrogen

View Answer

Correct Answer:  D.


 
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