Science GK Practice Question and Answer
8 4 Q:
5f912fafd6785c0fc0d91299 4 4 4 4 Q:
5f6046ec80a26b7dab001452 4 4 4 Q:
64424f9b0d865d025e66385d Answer : 2. "3"
Q: A high speed vehicle honks, so its pitch?
2090 05f912fafd6785c0fc0d91299
5f912fafd6785c0fc0d91299- 1is heard as muchfalse
- 2more audibletrue
- 3hearing impairedfalse
- 4First less and then morefalse
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Answer : 2. "more audible"
Q: What nucleus of atom contains ? 2089 05c2dbdee0cb513238953f92c
5c2dbdee0cb513238953f92c- 1protonsfalse
- 2electronsfalse
- 3electrons and protonsfalse
- 4protons and neutronstrue
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Answer : 4. "protons and neutrons"
Q: pH of blood is ? 2080 05c2dbf80f11ee42b64688fda
5c2dbf80f11ee42b64688fda- 110.4false
- 29false
- 37.4true
- 44false
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Answer : 3. "7.4"
Q: The most electronegative element among the following is 2074 15c2dc1a194bba731de8f0a45
5c2dc1a194bba731de8f0a45- 1sodiumfalse
- 2brominefalse
- 3fluorinetrue
- 4oxygenfalse
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Answer : 3. "fluorine"
Q: In the nitrogen cycle, soil nitrates are converted into free nitrogen by whom?
2062 05f6046ec80a26b7dab001452
5f6046ec80a26b7dab001452- 1nitrifying bacteriafalse
- 2denitrifying bacteriatrue
- 3ammonifying bacteriafalse
- 4None of thesefalse
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Answer : 2. "denitrifying bacteria"
Q: What is a mixture of potassium nitrate powdered charcoal and sulphur called? 2040 05c2dbd92bc106c237a22c18a
5c2dbd92bc106c237a22c18a- 1paintfalse
- 2aluminiumfalse
- 3brassfalse
- 4gun powdertrue
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Answer : 4. "gun powder"
Q: Rare gases are 2036 05c2dbc15aea81766da94cacf
5c2dbc15aea81766da94cacf- 1mono atomictrue
- 2di atomicfalse
- 3tri atomicfalse
- 4None of abovefalse
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Answer : 1. "mono atomic"
Q: The number of ossicles in the ear of mammals is
2034 064424f9b0d865d025e66385d
64424f9b0d865d025e66385d- 12false
- 23true
- 34false
- 45false
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Answer : 2. "3"
Explanation :
The mammalian middle ear contains three ossicles, which move the vibrations of the eardrum into waves in the liquid and membrane of the inward ear. There are three ossicles in every ear : Malleus, Incus, Stapes. As we have a couple of ears, so altogether there are 6 ossicles, or 3 sets of ossicles.
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