Science GK Practice Question and Answer
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Q: Which gas is used to purify pond water in cities?
1389 0601401905beea84b8ecebc42
601401905beea84b8ecebc42- 1Sulfur dioxidefalse
- 2Chlorinetrue
- 3Nitrogenfalse
- 4Ammoniafalse
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Answer : 2. "Chlorine"
Q: What nucleus of atom contains ? 1388 05c2dbdee0cb513238953f92c
5c2dbdee0cb513238953f92c- 1protonsfalse
- 2electronsfalse
- 3electrons and protonsfalse
- 4protons and neutronstrue
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Answer : 4. "protons and neutrons"
Q: Vegetable oils are converted into ghee?
1373 05f91021d7793eb35d72c61b3
5f91021d7793eb35d72c61b3- 1Heat treatmentfalse
- 2hydrogenationtrue
- 3oxygenfalse
- 4by enzymesfalse
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Answer : 2. "hydrogenation"
Q: The chemical used as a fixer in photography is ? 1370 05c2dc0a494bba731de8f0a31
5c2dc0a494bba731de8f0a31- 1sodium thiosulphatetrue
- 2sodium sulphatefalse
- 3boraxfalse
- 4ammonium sulphatefalse
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Answer : 1. "sodium thiosulphate"
Q: What is the following is the softest?
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611b6619dc4e2547a1c91d07- 1Alumfalse
- 2Diamondtrue
- 3Terliumfalse
- 4Topazfalse
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Answer : 2. "Diamond"
Q: Washing soda is ? 1336 05c2dbeeef11ee42b64688fcb
5c2dbeeef11ee42b64688fcb- 1sodium sulphitefalse
- 2sodium bicarbonatefalse
- 3sodium carbonatetrue
- 4sodium biosulphitefalse
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Answer : 3. "sodium carbonate"
Q: Why are white dresses worn in summer?
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5f913083d6785c0fc0d91399- 1Bad absorbers of heat aretrue
- 2are cheapfalse
- 3are attractivefalse
- 4None of thesefalse
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Answer : 1. "Bad absorbers of heat are"
Q: The metal used to recover copper from a solution of copper sulphate is ? 1323 05c2dc31994bba731de8f0a4a
5c2dc31994bba731de8f0a4a- 1Nafalse
- 2Agfalse
- 3Hgfalse
- 4Fetrue
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Answer : 4. "Fe"
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