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Acid-Base Equilibrium
Atomic Structure And Related Patterns In The Periodic Table
Bonding And Structure, And Intermolecular Forces
Chemical Equilibrium
D-Block Elements (Transition Elements)
DESCRIPTIVE INORGANIC CHEMISTRY: Group IV (14)
DESCRIPTIVE INORGANIC CHEMISTRY: Halogens (GROUP VII or 17)
DESCRIPTIVE INORGANIC CHEMISTRY: Modern Periodic Table, Periodicity And S-Block Elements
Functional Group Chemistry And Reaction Mechanism
ORGANIC CHEMISTRY: Fundamentals
Raoult’s Law And Phase Equilibria
Reaction Kinetics
Redox Equilibrium
The Mole Concept

5/64 MCQs for:

The Mole Concept

How many grams of nitric acid can be neutralised by two moles of sodium hydroxide?

63.0 g

78 g

31.5 g

126 g

12.4 g of copper (II) carbonate was heated in a crucible and only 7.2 g of copper (II) oxide was obtained. What is the percentage yield of copper (II) oxide?

95%

100%

90 %

None is correct

The relative atomic mass (RAM) of an element is defined as:

(Average mass of one atom of an element) / (1/12 mass of one atom of carbon-12 ).

(Average mass of any atom of an element) / (1/12 mass of one atom of carbon-12 ).

(Average mass of one atom of an element) / (1/12 mass of one atom of carbon).

( mass of one atom of an element) / (1/12 mass of one atom of carbon-12 ).

Which pair of substances below are primary standards?

Na₂CO₃ and Na₄B₄O₇

H₂SO₄ and Na₂C₂O₂

Na₂CO₃ and KMnO₄

NaOH and KIO₃

At s.t.p, molar volume is:

A. 22400 cm³

B. 22.4 dm³

C. 24000 cm³

BC.

AB.

ABC.

AC.