Question

Please anyone answer to these questions fast​

Answer 1

Answer:

A) Noble gases do not combine with other forms to form molecules because they are stable.

B) This is because nitric acid is a strong oxidising agent, and oxidises hydrogen gas to convert it into the water.

C) Although hydrogen is lighter than air but then also it cannot be collected by downward displacement of air. This is due to the fact that hydrogen gets oxidized easily in presence of air. This means that hydrogen can easily mix with air and thus, cannot be collected by this method.

D) As calcium carbide is a deliquescent substance it absorb water from the atmosphere when exposed to air

E)Metal atoms lose electrons from their outer shell when they form ions: the ions are positive, because they have more protons than electrons

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