Which of the following will weigh maximum amount?
(a). `20 g` iron, (b) `1.2 g` atom of `N`,
(c ) `1xx10^(23)` atoms of carbon,
(d) `1.12 litre` of `O_(2) at STP`.

Which of the following weighs most (a) 2 gram-atom of oxygen (b) 25 g of Fe (c) 4 xx 10^(23) atoms of carbon (d) 22.4 litres of CO_(2)

Which one of the following will have largest number of atoms? a. 1 g Au(s) b. 1g Na_(4)(s) c. 1 g Li(s) d. 1 g Cl_(2)(g)

Arrange the following in the increasing order of their mass. a. 1 g of Ca b. 12 amu of carbon c. 6.023 xx 10^23 molecules of CO_2 d. 11.2L of N_2 at STP e. 1 mole of H_2 O

Calculate the number of atoms in (a) 4.5 g atoms of potassium (b) 0.2 g atoms of chlorine (c ) 1.2 g molecules of nitrogen

Objective question (only one correct). I. Which of the following has least mass? a. 1 mol of S b. 3 xx 10^(23) atom of C c. 2 g atom of nitrogen d. 7.0 g of Ag ii. The simplest formula of a compound containing 50% of element A (atomic mass 10) and 50% of element B (atomic mass 20) is: a. AB b. A_(2) B c. A_(2) B_(3) d. AB_(3)

Objective question (only one correct). I. Which of the following has least mass? a. 1 mol of S b. 3 xx 10^(23) atom of C c. 2 g atom of nitrogen d. 7.0 g of Ag ii. The simplest formula of a compound containing 50% of element A (atomic mass 10) and 50% of element B (atomic mass 20) is: a. AB b. A_(2) B c. A_(2) B_(3) d. AB_(3)