91Ó°ÊÓ

The number of grams of a dibasic acid (molecular weight 200 ) present is \(100 \mathrm{~mL}\) of its aqueous solution to give decinormal strength is: (a) \(1 \mathrm{~g}\) (b) \(2 \mathrm{~g}\) (c) \(3 \mathrm{~g}\) (d) \(4 \mathrm{~g}\)

Normality of \(0.3 \mathrm{M} \mathrm{H}_{3} \mathrm{PO}_{4}\) solution is: (a) \(0.1 \mathrm{~N}\) (b) \(0.45 \mathrm{~N}\) (c) \(0.6 \mathrm{~N}\) (d) \(0.9 \mathrm{~N}\)

\(2 \mathrm{~g}\) of \(\mathrm{O}_{2}\) at NTP occupies the volume: (a) \(1.4 \mathrm{~L}\) (b) \(2.8 \mathrm{~L}\) (c) \(11.4 \mathrm{~L}\) (d) \(3.2 \mathrm{~L}\)

Which has maximum number of oxygen atoms? (a) \(1 \mathrm{~g}\) of \(\mathrm{O}\) (b) \(\lg\) of \(\mathrm{O}_{2}\) (c) \(1 \mathrm{~g}\) of \(\mathrm{O}_{3}\) (d) All have same number of \(\mathrm{O}\) -atoms

\(7.5 \mathrm{~g}\) of a gas occupies \(5.6\) litres as STP. The gas is: (a) CO (b) NO (c) \(\mathrm{CO}_{2}\) (d) \(\mathrm{N}_{2} \mathrm{O}\)

At STP the density of a gas (mol. wt. = 45) in \(\mathrm{g} / \mathrm{L}\) is: (a) \(11.2\) (b) 1000 (c) 2 (d) \(22.4\)

How many moles of acidified \(\mathrm{FeSO}_{4}\) can be completely oxidized by one mole of \(\mathrm{KMnO}_{4} ?\) (a) 20 (b) 10 (c) 5 (d) \(0.5\)

A compound possess \(8 \%\) sulphur by mass. The least molecular mass is: (a) 200 (b) 400 (c) 155 (d) 355

The vapour density of ozone is: (a) 24 (b) 16 (c) 48 (d) 72

The weight of one molecule of a compound \(\mathrm{C}_{60} \mathrm{H}_{122}\) is: (a) \(1.3 \times 10^{-20} \mathrm{~g}\) (b) \(5.01 \times 10^{-21} \mathrm{~g}\) (c) \(3.72 \times 10^{23} \mathrm{~g}\) (d) \(1.4 \times 10^{-21} \mathrm{~g}\)