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Chemistry

Chemistry
PH value between 6.5-7.5 makes the soil

Basic
Acidic
None of these
Neutral

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Chemistry
The hydronium ion is

H2+
H3O+
HO -
H+

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Chemistry
The National Chemical Laboratory is situated in

Bangalore
New Delhi
Patna
Pune

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Chemistry
Gobar gas mainly contains

Carbon dioxide
Methane
Hydrogen sulphide
Carbon monoxide

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Chemistry
Smoke is formed due to

Solid dispresed in liquid
Solid dispersed in gas
Gas dispersed in gas
Gas dispresed in solid

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Chemistry
What is the covalency of nitrogen in ammonia molecule

5
2
3
4

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