Chemistry
One property of ammonia is

It is a odourless gas
Its aqueous solution turns red litmus blue
It is a yellowish gas
It is insoluble in water

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Chemistry
Man dies in the atmosphere of CO, because it

Dries up the blood
Combines with the haemoglobin of blood, thereby making the later incapable of absorbing O2
Reduces the organic matter of tissues
Combines with O2 present in the body

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Chemistry
All isotopes of the same element have ________

The same atomic number but different atomic masses
Different atomic numbers and the same atomic mass
The same atomic number and the atomic mass
Different atomic numbers and different atomic mass

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