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Chemistry

Chemistry
The purest form of water is

Rain water
Ground water
Tap water
Distilled water

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Chemistry
When iron rusts, its weight

Decreases
Increases
First increases and then decreases
Remains the same

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Chemistry
Chloroform can be used as

Analgesic
Antimalarial
Antibiotic
Anaesthetic

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Chemistry
Which of the following acts as promoter for iron in Haber's process

W
Mn
Mo
Mg

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Chemistry
The heat required to raise the temperature of body by 1 K is called

specific heat
water equivalent
thermal capacity
None of these

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Chemistry
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in

Absorption spectra
Fluorescence
Raman spectra
Emission spectra

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