Cotton is a plant product and paper is also made from plants. So when cotton is burnt, it smells like burning paper. While wool and hair both are from animals, hence on burning they smell similar.
Answer:
It may blow your eardrums, or affect your hearing in other ways.
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Answer: Option (1) is the correct answer.
Explanation:
When dissolved in water, ammonium phosphate 
completely dissociates into ions and it gets attached to the opposite ends of water.
Therefore, it is soluble in water.
Whereas silver sulfate 
slightly dissolves into water as it gives very less 
ions. Therefore, silver sulfate has low solubility.
On the other hand, both 
and 
are insoluble in water.
Thus, we can conclude that out of the given options, is most soluble in water.
Answer:
we know, at STP ( standard temperature and pressure).
we know, volume of 1 mole of gas = 22.4L
weight of 1 Litre of hydrogen gas = 0.09g
so, weight of 22.4 litres of hydrogen gas = 22.4 × 0.09 = 2.016g ≈ 2g = molecular weight of hydrogen gas.
similarly,
weight of 2L of a gas = 2.88gm
so, weight of 22.4 L of the gas = 2.88 × 22.4/2 = 2.88 × 11.2 = 32.256g
hence, molecular weight of the gas = 32.256g
vapor density = molecular weight/2
= 32.256/2 = 16.128g
hence, vapor density of the gas is 16.128g.
Explanation:
