Diborane on hydrolysis gives a compound $X$. The correct statement about $X$ are
I. It is a tribasic acid
II. It is a weak monobasic acid
III. It has a layer structure
IV. It is highly soluble in water
Choose the correct statement about allotropes of carbon.
I. Graphite has layered structure.
II. Buckminster fullerene is not aromatic in nature.
III. The distance between two adjacent layers in graphite is 141.5 pm .
IV. The hybridisation of carbon in graphite and Buckminster fullerene is same.
Which of the following is a lung irritant that can lead to an acute respiratory disease in children?
Arrange the following in decreasing order of their boiling points
(A) 2-methylbutane
(B) 2, 2-dimethyl propane
(C) Pentane
(D) Hexane
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