FSC Part 1 Chemistry Chapter 1 Basic Concepts Online Test | ilmkidunya

Chemistry Fsc Part 1 Chapter 1 Online Test

Sr. #	Questions	Answers Choice
1	A limiting reactant is one.	Which is present in least amount Which produces minimum number of moles of product Which produces maximum number of moles product Does not effect the amount of product.
2	If four moles of sulphur dioxide are oxidized to sulphur trioxide, how many moles of oxygen are needed.	0.5 1.0 1.5 2.0
3	When one mole of each of the following is completely burned in oxygen, which gives the largest mass of carbon dioxide.	Diamond C2H6 Methane CO2
4	What is the mass of aluminium is 204 g of the aluminum oxide Al2O3.	26 g 27 g 54 g 108 g
5	How many molecules of CO2 are formed by burning 12 g carbon with excess of oxygen.	3.01 x 10<sup>23</sup> 1 x 10<sup>23</sup> 6.02 x 10<sup>23</sup> 1.03x 10<sup>23</sup>
6	How many moles of water results by burning 4 mole of H2 with excess of oxygen.	1 mol 2 mol 3 mol 4 mol
7	Stoichiometric calculations cannot applied to reversible reactions because.	Product again changes to reactant Less product is formed Reaction goes only in one direction Products do not disappear.
8	The number of electrons in one mole of hydrogen gas is.	6.02 x 10<sup>23</sup> 12.04 x 10<sup>23</sup> Only two Indefinite
9	The Avogadro constant is the number of.	Atoms in 1 g of helium ga Molecules in 35.5 g of chlorine gas Atoms in 6 h graphite Atoms in 24 g of magnesium
10	Which of the following contains the same number of molecules as 9 g of water.	2 g of hydrogen gas 14 g of nitrogen gas 32 g of oxygen gas 44 g of carbon dioxide gas
11	What has a mass equal to that of one mole of water.	22.4 dm3 of water One mole of steam One molecule of water Two moles of hydrogen molecules and one mole of oxygen molecules.
12	12.04 x 10²³atoms of nitrogen gas is equal to.	1 mol 2 mol 3 mol 4 mol
13	Which statement is incorrect about 64 g of SO2.	It is one mole SO2 The number of SO2 molecule are 6.02 x 10<sup>23</sup> The number of oxygen atoms are 6.02 x 10<sup>23</sup> The number sulphur atom are 6.02 x 10<sup>23</sup>
14	How many atoms are present in half mol of oxygen gas. Gas exist in diatomic state.	3.01 x 10<sup>23</sup> 6.02 x 10<sup>23</sup> 2 x 10<sup>23</sup> 1.003 x 10<sup>23</sup>
15	How many moles of CO are present having 12.04 x 10²³molecules of CO2.	0.5 mol 1.0 mol 1,5 mol 2.0 mol
16	A glass is full of water and contains 6.02 x 10²³molecules of H2O The mass of water molecules is.	18 gm 90 g 120 g 180 g
17	The mass fo 1.505 x 10²³atoms of sulphur is.	0.5 g 0.6 g 0.7 g 0.8 g

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