Science GK Practice Question and Answer
8 4 4 Q:
5f91021d7793eb35d72c61b3 4 4 Q:
604de8a0e147c16b2869ac67 4 Q:
5f6046a209624c19c5c13610 Answer : 2. "Egiolps"
4 Q:
5ef4495d2d6fc772f50b8ceb Answer : 3. "Magnetic"
4 4
Q: Nail polish remover contains ? 2031 05c2dbdbcbc106c237a22c18f
5c2dbdbcbc106c237a22c18f- 1benzenefalse
- 2acetic acidfalse
- 3acetonetrue
- 4petroleum etherfalse
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Answer : 3. "acetone"
Q: Vegetable oils are converted into ghee?
1988 05f91021d7793eb35d72c61b3
5f91021d7793eb35d72c61b3- 1Heat treatmentfalse
- 2hydrogenationtrue
- 3oxygenfalse
- 4by enzymesfalse
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Answer : 2. "hydrogenation"
Q: Atomic number is equal to 1973 05c2dc20bf11ee42b64688fe9
5c2dc20bf11ee42b64688fe9- 1Number of electronsfalse
- 2Numbers of protonstrue
- 3Number of nutronfalse
- 4Total number of protons and neutronsfalse
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Answer : 2. "Numbers of protons"
Q: Embryos of Tritium aestivum have a chromosome number?
1969 0604de8a0e147c16b2869ac67
604de8a0e147c16b2869ac67- 144false
- 263true
- 365false
- 467false
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Answer : 2. "63"
Q: An aquatic plant was introduced to the US to remove pollution in Indian aquatic bodies as a troublesome weed. what is its name?
1968 05f6046a209624c19c5c13610
5f6046a209624c19c5c13610- 1hawthornfalse
- 2Egiolpstrue
- 3hyacinthfalse
- 4Pistiafalse
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Answer : 2. "Egiolps"
Explanation :
So the correct answer is 'Eichhornia crassipes' An aquatic plant introduced from America to check pollution turned out to be a troublesome weed in Indian water bodies.
Q: What is the coupling of primary and secondary coils in a transformer?
1964 05ef4495d2d6fc772f50b8ceb
5ef4495d2d6fc772f50b8ceb- 1Electricalfalse
- 2Mechanicalfalse
- 3Magnetictrue
- 4All thesefalse
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Answer : 3. "Magnetic"
Explanation :
The secondary coil is also generating a magnetic field that is growing and shrinking just like the field in the primary coil. This coupling of magnetic energy between these two coils is called mutual induction.
Q: Water drops are spherical because of ? 1956 05c2dc0d094bba731de8f0a36
5c2dc0d094bba731de8f0a36- 1viscosityfalse
- 2densityfalse
- 3polarityfalse
- 4surface tensiontrue
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Answer : 4. "surface tension"
Q: Washing soda is ? 1943 05c2dbeeef11ee42b64688fcb
5c2dbeeef11ee42b64688fcb- 1sodium sulphitefalse
- 2sodium bicarbonatefalse
- 3sodium carbonatetrue
- 4sodium biosulphitefalse
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Answer : 3. "sodium carbonate"
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