Chemistry Fsc Part 1 Chapter 1 Online Test With Answers

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Chemistry Fsc Part 1 Chapter 1 Online Test

Sr. # Questions Answers Choice
1 Paalladium has isotopes. 6 <sub>7</sub> 8 9
2 Which is not a molecular ion. He+ CH3+ NH3- CO+
3 In Al2O3, the ratio between the ions is 1 :2 2:1 2:3 3:2
4 Haemoglobin is a Macro molecule and consists of approximately atoms. 5000 10,000 68000 15000
5 The largest number of molecule are present. 3.6 g of H2O 4.6 g of C2H5OH 2.8 g of CO 5.4 g of N2O5
6 Nickel has isotopes 3 5 6 11
7 Bromine has isotopes 2 4 8 6
8 Cadmium has isotopes. 3 4 5 9
9 Actual yield is mostly less than the theoretical yield due to the reason that Rates of reactions are slow Loss of the product during handling Reactions are never completed 100% Law of conservation of mass is not true
10 A limiting reactant is that one which Gives greatest number of moles of products Gives least number of moles of products Is left behind after the completion of reaction Is mostly a cheaper substance as compared to other reactants
11 How many moles of AgCI are produced by combination of 1.0 mole of AgNO3and 2.0 mole of NaCI 1.0 2.0 3.0 4.0
12 In stoichiometric calculations The reaction can be reversile Side products can be formed Law of conservation of mass may not be obeyed Law of definite proportions is definitely obeyed
13 One mole of CH3OH and one mole of C2H5OH have Equal number of atoms Equal number of molecules Equal number of electrons Equal number of protons
14 The volume occupied by 1.6 g of O2at STP is 22.4 dm<sup>3</sup> 2.24 dm<sup>3</sup> 1.12 dm<sup>3</sup> 112 dm<sup>3</sup>
15 I molar volume of a gas at S.T.P is occupied by 1 g of gas 6 x 10<sup>23</sup>g of gas 22.4 m<sup>3</sup>of gas 1 gram molecular mass of gas
16 Which of the following compound has the highest % o f oxygen by weight CH<sub>3</sub>- OH C<sub>2</sub>H<sub>5</sub>OH HCOOH H<sub>2</sub>O
17 Tin has Isotopes 7 9 11 5
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