General Science Quiz for RRB NTPC 2016 - Set 4

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1. Cement is made hard with?
(a) dehydration
(b) hydration and dissociation of water
(c) dissociation of water
(d) polymerisation

2. Which among the following is carbohydrate?
(a) nylon
(b) cane sugar
(c) turpentine
(d) hydrogen peroxide

3. Fertilizer having high nitrogen content is?
(a) urea
(b) ammonium sulphate
(c) ammonium nitrate
(d) calcium citrate

4. The gas used for artificial fruit ripening of green fruit is?
(a) ethylene
(b) acetylene
(c) ethane
(d) methane

5. Chemical name of baking soda?
(a) sodium carbonate
(b)  sodium bicarbonate
(c) Sodium nitrite
(d) Sodium nitrate

6. The radioactive element used in heart pacemaker is?
(a) uranium
(b) deuterium
(c) plutonium
(d) radium

7. The anode in the dry cell consists of?
(a) copper
(b) zinc
(c) cadmium
(d) graphite

8. Silk fibre chemically is?
(a) carbohydrate
(b) fat
(c) protein
(d) cellulose

9. Fermentation of milk to curd is due to?
(a) mycobacterium
(b) staphylococcus
(c) lactobacillus
(d) yeasts

10. By which organic compound all the oils are known as?
(a) carbohydrate
(b) protein
(c) hydrocarbon

(d) ester


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