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Chemistry

Chemistry
A fertile soil is likely to have a pH of

9
14
43989
3

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Chemistry
In sugar solution,

Sugar is solute, water is solvent
Sugar is solvent, water is solute
Both are solutes
Both are solvents

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Chemistry
Atoms of same element having different mass numbers are called________

Isotopes
Isobars
Isomers
Isotones

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Chemistry
Air is said to be saturated when :

Its thickness is maximum
Its pressure is minimum
It contains maximum content of water vapour
It blows over the barren land

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Chemistry
Hard steel contains

0.1 to 0.4 per cent carbon
0.01 to 0.04 per cent carbon
0.5 to 1.5 per cent carbon
2 to 5 per cent carbon

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Chemistry
The main active constituent of tea and coffee is

chlorophyll
caffeine
aspirin
nicotine

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MORE MCQ ON Chemistry

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