Chemistry Fsc Part 1 Online Test With Answers

Chemistry Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1

How many moles of water are proeuced by buringing 4 moles of H2 with excess of oxygen.

 <p>1 mole</p> <p>2moles</p> <p>3 moles</p> <p>4 moles</p>
2

The reatant which consumes earlier and gives lest quantity of product is called.

 <p>Reactant</p> <p>Limiting reacant</p> <p>Stiochiometry</p> <p>Stoichiometric amount</p>
3

A limiting  reactatn is the one which

 <p>Is taken on lesser quantity in gram&nbsp; to compared to other reactionts</p> <p>Is taken in lesser quantity in volume as compared to the other reactants</p> <p>Gives the maximum amount o fthe produce which is required</p> <p>Gives teh minimum amountof the proudcut under considerationn&nbsp;</p>
4

What the mass of oxygen obtaingng from 72 g of pure water.

 <p>16 g</p> <p>32 g</p> <p>64 g</p> <p>72 g</p>
5

What is the ratio of volumes of 2 g of 2 to the volum of 16 g CH4 both volume areat STP

 <p>1:1</p> <p>1:8</p> <p>1:2</p> <p>2:1</p>
6

The ratio of numerbof olecues of 2 g H2 gas to numebr of molecues of 64 g gaseous oxygen is

 <p>1:2</p> <p>1:1</p> <p>1:32</p> <p>1:4</p>
7

The ratio of numebr of molecules in 71 g of gaseous chlroine  to the numebr of molecules in 2 g of gaseous hydrogen is

 <p>1:1</p> <p>71:2</p> <p>1:2</p> <p>71:1</p>
8

27 g of Al will react completely with how much mass of O2 to produce Al2 O3.

 <p>8 g</p> <p>24 g</p> <p>16 g</p> <p>32 g</p>
9

Molar volume of a gas at STP is equal

 <p>1 gram of a gas</p> <p>23. 414 dm3</p> <p>6.02 x 10<sup>23</sup> of a gas</p> <p>1 gram ion of ags</p>
10

The volume of occupied by 1.4 g of N1 at

 <p>1.12 dm3</p> <p>2.24 dm3</p> <p>22.4 dm3</p> <p>112 dm3</p>
11

Which of the following has minimum mass

 <p>3 x 10 <sup>23</sup> atom of C</p> <p>1 mole of S</p> <p>79 gram of Ag</p> <p>2 gram atomsof N</p>
12

The mass of molecules of CO 

 <p>0.5 moles</p> <p>2.0 moles</p> <p>1.0 moles</p> <p>1.06 moles</p>
13

The mass  of 1.55 x 10 23 atoms of Si

 <p>0.5 g</p> <p>8 g</p> <p>0.7 g</p> <p>0.6 g</p>
14

The total number of oxygen atom is 22 g of CO2 gas is

 <p>6.02 x 10<sup> 23</sup>&nbsp; molecules</p> <p>12.4 x 10<sup> 23</sup>&nbsp;&nbsp;</p> <p>12.04 x 10<sup> 23</sup>&nbsp;&nbsp;</p> <p>2.0 x 10<sup> 23</sup>&nbsp;&nbsp;</p>
15

The number of atoms present in 6 g of Mg metalis.

 <p>12.4 x 10<sup> 23</sup>&nbsp;</p> <p>6.02 x 10<sup> 23</sup>&nbsp;&nbsp;</p> <p>1.5 x 10<sup> 23</sup>&nbsp;&nbsp;</p> <p>3.01 x 10<sup> 23</sup>&nbsp;&nbsp;</p>
16

The number of molecule  in 8g of oxygen gas is.

 <p>6.02 x 10<sup> 23</sup>&nbsp;&nbsp;</p> <p>1.50 x 10<sup> 23</sup>&nbsp;&nbsp;</p> <p>0.75 x 10<sup> 23</sup>&nbsp;&nbsp;</p> <p>12.4 x 10<sup> 23</sup>&nbsp;&nbsp;</p>
17

How many atoms are present in one mole of water.

 <p>3</p> <p>54</p> <p>12.4 x 10<sup> 23</sup>&nbsp;</p> <p>3</p>
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