(i) 44g of CO 2 constitutes 1 mol of CO 2 . Therefore, 88g of CO 2 is 2 mol of CO 2 . The correct answer is (b). (ii) 1 mol of any compound contains 6.022 x 10 23 molecules of the compound. Hence 6.022 x 10 23 molecules of H 2 O constitute 1 mol of H 2 O. The correct answer is (c). (iii) At STP, 22.4L of O 2 makes 1 mol of O 2 . Hence, 5.6L of O 2 constitutes 5.6/22.4 = 0.25mol of O 2 . The correct answer is (a). (iv) 1 mol of O 2 contains 32g of O 2 . Hence 96g of O 2 makes 96/32 = 3 mol of O 2 . The correct answer is (e). (v) 1 mol of any gas contains 6.023 x 10 23 molecules. Hence, the correct answer is (d).

Match the following:

(i) 44g of CO₂ constitutes 1 mol of CO₂. Therefore, 88g of CO₂ is 2 mol of CO₂. The correct answer is (b).

(ii) 1 mol of any compound contains 6.022 x 10²³ molecules of the compound. Hence 6.022 x 10²³ molecules of H₂O constitute 1 mol of H₂O. The correct answer is (c).

(iii) At STP, 22.4L of O₂ makes 1 mol of O₂. Hence, 5.6L of O₂ constitutes 5.6/22.4 = 0.25mol of O₂. The correct answer is (a).

(iv) 1 mol of O₂ contains 32g of O₂. Hence 96g of O₂ makes 96/32 = 3 mol of O₂. The correct answer is (e).

(v) 1 mol of any gas contains 6.023 x 10²³ molecules. Hence, the correct answer is (d).