Calculate the molecular mass of glucose $[C_{6}H_{12}O_{6}]$ molecule. (in $u$)

In a Victor Meyer's apparatus,$510 \ mg$ of a liquid on vaporization displaces $67.2 \ cm^3$ of dry air at $NTP$. What is the molecular weight of the liquid?

On reduction with hydrogen,$3.6 \, g$ of an oxide of a metal left $3.2 \, g$ of metal. If the equivalent weight of the metal is $32$,the simplest formula of the oxide would be:

Which of the following properties of an element is not variable?

$A$ bivalent metal has an equivalent mass of $32$. The molecular mass of the metal nitrate is

Write the formulae for the following compounds:
$(a)$ Mercury $(II)$ chloride
$(b)$ Nickel $(II)$ sulphate
$(c)$ Tin $(IV)$ oxide
$(d)$ Thallium $(I)$ sulphate
$(e)$ Iron $(III)$ sulphate
$(f)$ Chromium $(III)$ oxide