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Test: Mole Concept, Volumetric & Redox - 3 - Chemistry MCQ


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30 Questions MCQ Test Physical Chemistry - Test: Mole Concept, Volumetric & Redox - 3

Test: Mole Concept, Volumetric & Redox - 3 for Chemistry 2024 is part of Physical Chemistry preparation. The Test: Mole Concept, Volumetric & Redox - 3 questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Mole Concept, Volumetric & Redox - 3 MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Mole Concept, Volumetric & Redox - 3 below.
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Test: Mole Concept, Volumetric & Redox - 3 - Question 1

The total number of electrons in one molecule is carbon dioxide is

Test: Mole Concept, Volumetric & Redox - 3 - Question 2

The largest number of molecules is in

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Test: Mole Concept, Volumetric & Redox - 3 - Question 3

When the same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volumes of hydrogen evolved is

Test: Mole Concept, Volumetric & Redox - 3 - Question 4

2.76 g of silver carbonate on being strongly heated yields a residue weighing

Test: Mole Concept, Volumetric & Redox - 3 - Question 5

If 0.5 mol of BaCl2 is mixed with 0.20 mol of Na3PO4, the maximum amount of Ba3(PO4)2 that can be formed is

Test: Mole Concept, Volumetric & Redox - 3 - Question 6

A molal solution is one that contains one mole of solute in

Test: Mole Concept, Volumetric & Redox - 3 - Question 7

Which of the following changes with increase in temperature:

Detailed Solution for Test: Mole Concept, Volumetric & Redox - 3 - Question 7

Temperature will affect the volume of solution.

Hence, the expression for concentration that contain volume will change with temperature. Hence weight fraction of solute changes.

i.e. , Molarity gets effected with the change in temperature because the number of moles per unit volume changes by the change in temperature. 

Test: Mole Concept, Volumetric & Redox - 3 - Question 8

How many moles of electron weighs one kilogram?

Test: Mole Concept, Volumetric & Redox - 3 - Question 9

Which has maximum number of atoms?

Test: Mole Concept, Volumetric & Redox - 3 - Question 10

Given that the abundances of isotopes 54Fe, 56Fe and 57Fe are 5%, 90% and 5% respectively, the atomic mass of Fe is

Test: Mole Concept, Volumetric & Redox - 3 - Question 11

Dissolving 120 g of urea (mol. Wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is

Test: Mole Concept, Volumetric & Redox - 3 - Question 12

The hydrated salt Na2CO3.x H2O undergoes 63% loss in mass on heating and becomes anhydrous. The value of x is

Test: Mole Concept, Volumetric & Redox - 3 - Question 13

The volume of chlorine at STP required to liberate all the bromine and iodine in 100 mL of 0.1 M each of KI and MBr2 will be:

Detailed Solution for Test: Mole Concept, Volumetric & Redox - 3 - Question 13

Test: Mole Concept, Volumetric & Redox - 3 - Question 14

0.5400 g of a metal X yields 1.020 g of its oxide X2O3. The number of moles of X is:

Test: Mole Concept, Volumetric & Redox - 3 - Question 15

Consider the reaction 2A + B + 3C → P + 2Q. Starting with 3 mol of A, 2 mol of B and 6 mol of C, number of moles of the products P and Q would respectively be:

Test: Mole Concept, Volumetric & Redox - 3 - Question 16

A mixture of methane and ethane in the mole ratio of x : y has a mean molecular mass equal to 20. What would be the mean molecular mass of a mixture of the same gases present in the ratio y : x?

Test: Mole Concept, Volumetric & Redox - 3 - Question 17

A partially dried clay mineral contains 8% water. The original sample contained 12% water  and 45% silica. The percentage of silica in the partially dried sample is nearly

Test: Mole Concept, Volumetric & Redox - 3 - Question 18

H2O2 in aqueous solution decomposes on warming as: 2H2O2(aq) → 2H2O(l) + O2(g) If 1 mole of gas occupies a volume of 25 L under the conditions of measurement and 200 ml of x M solution of H2O2 produces 5L of O2, the value of x is

Test: Mole Concept, Volumetric & Redox - 3 - Question 19

5.0 g of a certain element X forms 10.0 g of its oxide having the formula X4O6. The atomic mass of X is

Test: Mole Concept, Volumetric & Redox - 3 - Question 20

Charcoal (1 g) of surface area 100 m2 per gram, adsorbs 60 mg of acetic acid from an aqueous solution at 25°C and 1 atmosphere pressure. The number of moles of acetic acid adsorbed per cm2 of charcoal surface is:

Detailed Solution for Test: Mole Concept, Volumetric & Redox - 3 - Question 20

Test: Mole Concept, Volumetric & Redox - 3 - Question 21

The ionic strength of 0.1 M aqueous solution of Fe2(SO4)3 is:

Test: Mole Concept, Volumetric & Redox - 3 - Question 22

In the following sequence of reactions, the overall yield (%) of O is:

Test: Mole Concept, Volumetric & Redox - 3 - Question 23

Number of atoms in 558.5 g Fe (at. wt. 55.85) is:

Test: Mole Concept, Volumetric & Redox - 3 - Question 24

In a compound C, H, N atoms are present in 9 : 1 : 3.5 by weight. Molecular weight of compound is 108. Its molecular formula is:

Test: Mole Concept, Volumetric & Redox - 3 - Question 25

What volume of hydrogen gas at 273 K and 1 atm pressure will be consumed in obtaining 21.6 g of elemental boron (at. mass = 10.8) from the reduction of boron trichloride with hydrogen:

Test: Mole Concept, Volumetric & Redox - 3 - Question 26

25 mL of a solution of barium hydroxide on titration with 0.1 molar solution of hydrochloric acid gave a titre value of 35 mL. The molarity of barium hydroxide is:

Test: Mole Concept, Volumetric & Redox - 3 - Question 27

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

Test: Mole Concept, Volumetric & Redox - 3 - Question 28

To neutralize completely 20 mL of 0.1 M aqueous solution of phosphorus (H3PO3) acid the volume of 0.1 M aqueous KOH solution required is:

Test: Mole Concept, Volumetric & Redox - 3 - Question 29

Two solution of a substance (non-electrolyte) are mixed in the following manner,480ml of 1.5M of first solution with 520 ml of 1.2m of second solution.The molarity of final solution is

Detailed Solution for Test: Mole Concept, Volumetric & Redox - 3 - Question 29

Test: Mole Concept, Volumetric & Redox - 3 - Question 30

If 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will:

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