Science GK Practice Question and Answer
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5f6046ec80a26b7dab001452
Q: The most electronegative element among the following is 1872 15c2dc1a194bba731de8f0a45
5c2dc1a194bba731de8f0a45- 1sodiumfalse
- 2brominefalse
- 3fluorinetrue
- 4oxygenfalse
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Answer : 3. "fluorine"
Q: pH of blood is ? 1861 05c2dbf80f11ee42b64688fda
5c2dbf80f11ee42b64688fda- 110.4false
- 29false
- 37.4true
- 44false
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Answer : 3. "7.4"
Q: The chemical used as a fixer in photography is ? 1843 05c2dc0a494bba731de8f0a31
5c2dc0a494bba731de8f0a31- 1sodium thiosulphatetrue
- 2sodium sulphatefalse
- 3boraxfalse
- 4ammonium sulphatefalse
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Answer : 1. "sodium thiosulphate"
Q: What is a mixture of potassium nitrate powdered charcoal and sulphur called? 1843 05c2dbd92bc106c237a22c18a
5c2dbd92bc106c237a22c18a- 1paintfalse
- 2aluminiumfalse
- 3brassfalse
- 4gun powdertrue
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Answer : 4. "gun powder"
Q: Nail polish remover contains ? 1841 05c2dbdbcbc106c237a22c18f
5c2dbdbcbc106c237a22c18f- 1benzenefalse
- 2acetic acidfalse
- 3acetonetrue
- 4petroleum etherfalse
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Answer : 3. "acetone"
Q: What nucleus of atom contains ? 1837 05c2dbdee0cb513238953f92c
5c2dbdee0cb513238953f92c- 1protonsfalse
- 2electronsfalse
- 3electrons and protonsfalse
- 4protons and neutronstrue
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Answer : 4. "protons and neutrons"
Q: Rare gases are 1825 05c2dbc15aea81766da94cacf
5c2dbc15aea81766da94cacf- 1mono atomictrue
- 2di atomicfalse
- 3tri atomicfalse
- 4None of abovefalse
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Answer : 1. "mono atomic"
Q: In the nitrogen cycle, soil nitrates are converted into free nitrogen by whom?
1815 05f6046ec80a26b7dab001452
5f6046ec80a26b7dab001452- 1nitrifying bacteriafalse
- 2denitrifying bacteriatrue
- 3ammonifying bacteriafalse
- 4None of thesefalse
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Answer : 2. "denitrifying bacteria"
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