Chemistry MCQs for PPSC FPSC KKPSC BPSC SPSC NTS Test No. 58

Online Free Taleem is free online MCQ’s test related to Lecturer Chemistry. All the individuals who are going to appear in PPSC, FPSC, KKPSC, SPSC, BPSC, AJ&KPSC, NTS, Lecturer Chemistry written test can attempt these tests in order to prepare for it in best possible way. Our tests of Lecturer of Chemistry include all the important questions and Past Paper of  Lecturer Chemistry, that have extremely high amount of chances for been included in the actual exam which make our test undoubtedly the best source of preparation.

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There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
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Test Instructions:-
Test NameLecturer Chemistry
SubjectChemistry Test 58
Test TypeMCQs
Total Questions25
Total Time20 Minutes
Total Marks100
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You have 20 minutes to pass to the quiz.


Lecturer of Chemistry Online Test No. 58

1 / 25

0.30 g of a volatile liquid displaces 90.0 cm3 of air at STP in the Victor Meyer’s method. The molecular mass of the liquid is:

2 / 25

An aqueous solution of 6.3 g oxalic acid dehydrate is made up to 250 ml. The volume of 0.1 N NaOH required to completely neutralize 10 mL of this solution is:

3 / 25

What is the molarity of H2SO4 solution that has a density 1.84 g/cc at 35°C and contains 98% H2SO4 by weight?

4 / 25

What is the Mass of 0.5 moles of O3 molecules?

5 / 25

If equal moles of water and urea are taken in a vessel what will be the mass percentage of urea in the solution?

6 / 25

Find the number of atoms present in 0.016 g of methane:

A). 0.5 N0

B). 0.005 N0

C). N0

D). 1.6 N0

7 / 25

From the complete decomposition of 20 g CaCO3 at STP the volume of CO2 obtained is:

8 / 25

The weight of 1 × 1022 molecules of CuSO4 .2H2O is:

9 / 25

The number of molecules in 4.25 g of ammonia is:

A). 1.5 × 1023

B). 2.5 × 1023

C). 3.5 × 1023

D). 15 × 1023

10 / 25

When 18 g of glucose is dissolved in 180 g of water then the mole fraction of glucose is:

11 / 25

The weight of a single atom of oxygen is:

A). 5.057 × 1023 g

B). 1.556 × 1023 g

C). 2.656 × 10-23 g

D). 4.538 × 10-23 g

12 / 25

The volume in litres of CO2 liberated at STP, when log of 90% pure limestone is heated completely is:

13 / 25

The number of moles of oxygen in one litre of air containing 21% oxygen by volume, in standard
conditions, is:

14 / 25

To neutralize completely 20 mL of 0.1 M aqueous solution of phosphorus acid, the volume of 0.1 M aqueous KOH solution required is:

15 / 25

The amount of O2 formed at N.T.P by the complete combustion of 1 kg coal is:

16 / 25

15 litre atmosphere is equal to:

A). 1.515 × 108 erg

B). 15.15 × 109 erg

C). 1.515 × 1010 erg

D). 15.15 × 1012 erg

17 / 25

The amount of zinc required to produce 224 mL of H2 at STP on treatment with dilute H2SO4 will be (Zn = 65):

18 / 25

If 0.50 mole of BaCl2 is mixed with 0.20 mole of Na3PO4, the maximum number of moles of Ba3(PO4)2 that can be formed is:

19 / 25

Density of a 2.05 M solution of acetic acid in water is 1.02 g/mL. The molality of the solution is:

A). 1.14 mol kg-1

B). 3.28 mol kg-1

C). 2.28 mol kg-1

D). 0.44 mol kg-1

20 / 25

A metal oxide having 40% oxygen. The equivalent weight of metal is:

21 / 25

5 g of CH3COOH is dissolved in one litre of ethanol. Suppose there is no reaction between them. If the density of ethanol is 0.789 g/mL then the molality of resulting solution is:

22 / 25

6.02 × 1020 molecules of urea are present in 100 mL of its solution. The concentration of urea solution is:

23 / 25

A gaseous mixture contains O2 and N2 in the ratio 1:4 by weight. Then the ratio of their number of molecules in the mixture is:

 

24 / 25

Number of atoms in 4.25 g of NH3 is approximately:

A). 6 × 1023

B). 15 × 1023

C). 1.5 × 1023

D). 2.5 × 1023

25 / 25

The amount of NH3 formed by the combustion of 2 L of N2 and 2 L of H2 is:

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