10th Class Chemistry Chapter 1 English Medium Online MCQ Test With Answer

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MCQ's Test For Chapter 1 "Chemical Equilibrium"

Try The MCQ's Test For Chapter 1 "Chemical Equilibrium"

  • Total Questions12

  • Time Allowed15

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Chemical Equilibrium

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Question # 1

We exhale gas in the atmosphere during respiration.

Question # 2

The reactions in which products can recombine to form reactants is called.

Question # 3

For a reaction between PCL3 and Cl2 to form PCl5 the units of Kc are:

Question # 4

When the rate of a the forward reaction takes place at the rate of reverse reaction the composition of the reaction mixture remains constant it is called.

Question # 5

Equilibrium constant has no unit when number of moles of reactants and products are:

Question # 6

When CaCO3,.is heated in an open flask, it decomposes to form calcium oxides and .

Question # 7

Which types of reaction speed up gradually?

Question # 8

Kc is always equal to

Question # 9

The characteristics of reversible reactions are the following except:

Question # 10

When the reaction causes to produced it is called.

Question # 11

The reaction in which the number of moles reactants and products not equal in balance chemical equation the units of Kc for this reactions are

Question # 12

A complete reaction is one is which.

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10th Class (English Medium) Chemistry Chapter 1 Important MCQ's

Sr.# Question Answer
1 When the reaction causes to produced it is called.
A. Chemical equlibrium state
B. Static equilibrium
C. Dynamic equilibriiun
D. All
2 Such reationsin which reactants and products are sufficient in quantities the Kc value of equilibrium state will be
A. Very small
B. Very large
C. Moderate
D. None of these
3 If Qc > Kc the reaction will be in
A. Chemical equilibrium
B. Static equilibrium
C. Reverse reaction
D. Forward reaction
4 What is the colour of hydrogen iodide in product?
A. Purple
B. Yellow
C. Blue
D. Colorless
5 In a chemical reaction, the substance that combine are called.
A. Reactant
B. Products
C. Mass
D. Material
6 The two major components of atmosphere are:
A. Hydrogen and oxygen
B. Nitrogen and Hydrogen
C. Nitrogen and oxygen
D. Oxygen and water.
7 The reaction in which the products can recombine to form reactants are called.
A. Reversible reaction
B. Irreversible reaction
C. Decomposition
D. Addition
8 The major components of Atmosphere are:
A. Carbon and Nitrogen
B. Nitrogen and Oxygen
C. Oxygen and Chlorine
D. None of these
9 A reverse reaction is that.
A. Which proceed from left to high
B. In which reactants reacts to form products
C. Which slow down gradually
D. Which speed up gradually
10 The unit of molar concentration:
A. mol. dm-2
B. mol. dm-1
C. mol. dm
D. mol. dm-3

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