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Test: Chemical Equations


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10 Questions MCQ Test Additional Documents & Tests for Class 10 | Test: Chemical Equations

Test: Chemical Equations for Class 10 2022 is part of Additional Documents & Tests for Class 10 preparation. The Test: Chemical Equations questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Chemical Equations MCQs are made for Class 10 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Chemical Equations below.
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Test: Chemical Equations - Question 1

The chemical formula of lead sulphate is

Detailed Solution for Test: Chemical Equations - Question 1

Lead (II) sulfate PbSO4 

Test: Chemical Equations - Question 2

Fatty foods become rancid due to the process of

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When the food containing fats and oils starts giving unpleasant taste and smell due to oxidation, then the food becomes rancid.

Test: Chemical Equations - Question 3

The substances that are formed after completion of the reaction are called:

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The substance which take part in reaction is called reactants and the substance which formed after the reaction is called products.

Test: Chemical Equations - Question 4

The reaction in which two compound exchange their ions to form two new compounds is called     

Detailed Solution for Test: Chemical Equations - Question 4

Double displacement reaction: If two reactants exchange their constituents chemically and form two products then the reaction is called double displacement reaction.

Test: Chemical Equations - Question 5

The reaction of H2 gas with oxygen gas to form water is an example of

Detailed Solution for Test: Chemical Equations - Question 5

Hydrogen gas react with oxygen gas to water. That's why it is a combination reaction. Here, reduction of oxygen by hydrogen also takes place and heat is released during the reaction so it is redox and exothermic reaction.

Test: Chemical Equations - Question 6

The balanced chemical equation for the reaction of zinc metal with hydrochloric acid is:

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Number of atoms of each element are equal on both sides in the balanced equation.

Test: Chemical Equations - Question 7

The electrolytic decomposition of water gives H2 and O2 in the ratio of

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Water contains two parts hydrogen and one part oxygen (2H and 1O = H2O)
Because of this, the amount of hydrogen and oxygen produced during electrolysis of water is in a 2:1 ratio

Test: Chemical Equations - Question 8

We store silver chloride in a dark coloured bottle because it is     

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Silver chloride is a white solid , however it is very sensitive to sunlight and decomposes in the presence of sunlight to form silver (grey in colour) and chlorine. Therefore, in order to avoid this action by light , it is kept in coloured bottles.

Test: Chemical Equations - Question 9

When copper sulphate solution reacts with iron metal, copper metal is formed. This reaction comes under which of the following category?

Detailed Solution for Test: Chemical Equations - Question 9

CuSO4 + Fe --------> FeSO4 + Cu

When iron metal placed in copper sulphate solution, iron displaces copper from copper sulphate solution which is blue in colour to from iron sulphate solution which is green in colour and copper metal ( reddish deposit formed on iron metal) . Iron displaces copper because iron is more reactive then copper

The type of reaction involved is Single Displacement reaction.

Test: Chemical Equations - Question 10

A chemical reaction has taken place can be represented by which of the following condition?

Detailed Solution for Test: Chemical Equations - Question 10

When a metal react with acid then hydrogen gas evolve, in this way evolution of gas occurs during chemical reaction. When sodium react with cold water then hear is released, even it also catch fire. Wgen iron react with copper sulphate then copper is displaced by iron and change the colour of solution.

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