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Chemistry

Chemistry
The percentage of nitrogen present in ammonium sulphate is :

0.25
0.27
0.18
0.305

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Chemistry
Cyanide poisoning causes death in seconds because

It breaks the electron transport chain
It causes Lysis of red blood cells
It denatures enzymes of the heart/muscle
It causes cardiac arrest

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Chemistry
What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ?

There is no reaction.
The paper ignites
There is a crackling sound
There is a violent explosion.

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Chemistry
Supersonic jet causes pollution by thinning of

O 2 layer
SO2 layer
CO2 layer
O3 layer

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Chemistry
The compound to which H2 does not add is

Tetra –9 – phenanthrylethylene
Tetraphenyl ethylene
Biphenyl ethylene
Tetra – a –naphthylethylene

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Chemistry
Which of the following is not present in RNA

Ribose
Phosphate
Thymine
Uracil

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MORE MCQ ON Chemistry

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