Saleha Pervez, Mansi Garg and, Poonam Singh Solutions for Chapter: Chemical Reactions and Equations, Exercise 1: Self Check
Saleha Pervez General Studies Paper 1 Solutions for Exercise - Saleha Pervez, Mansi Garg and, Poonam Singh Solutions for Chapter: Chemical Reactions and Equations, Exercise 1: Self Check
Attempt the practice questions on Chapter 11: Chemical Reactions and Equations, Exercise 1: Self Check with hints and solutions to strengthen your understanding. General Science solutions are prepared by Experienced Embibe Experts.
Questions from Saleha Pervez, Mansi Garg and, Poonam Singh Solutions for Chapter: Chemical Reactions and Equations, Exercise 1: Self Check with Hints & Solutions
In a dry cell (battery), which of the following are used as electrolytes?
Consider the following statements. The Redox reactions is :
1. In a redox reaction, oxidation and reduction reactions take place simultaneously.
2. Oxidizing agents are lewis acids, and reducing agents are lewis bases.
Which of the statements given above is/are incorrect?
Consider the following statements.
1. Reactions in which heat is released and the formation of products are called exothermic chemical reactions.
2. Reactions in which energy is absorbed are known as endothermic reactions.
Which of the statements given above is/are correct?
Consider the following statements regarding electrolysis:
1. Electrolysis is carried out in an electrolytic cell.
2. Aluminium is produced by the electrolysis of molten aluminium oxide in the presence of cryolite. Therefore, electrolysis is very useful in the extraction of metals.
Which of the statements given above is/are correct?
Consider the following statements regarding corrosion:
. Surface of copper acquires a green coating of basic copper carbonate in moist air.
. The rusting of iron can be prevented by painting, oiling and greasing, coating iron objects with zinc and chrome plating etc.
Which of the statements given above is/are correct regarding corrosion?
Ammonia is prepared by the Haber process. In this process, N2 reacts with H2 in the presence of catalyst iron. In this process, which metal is used as a promoter of catalyst iron?
Consider the following statements regarding enzyme catalysis:
1. The rates of enzymatic reactions are very much affected by pH change.
2. Enzyme catalysts are not specific in their reactions.
Which of the statements given above is/are incorrect?
Which of the following statements is/are true?
1. Pure water does not conduct electricity because it is almost unionised.
2. When iron rusts, its weight increases.
3. A chemical reaction becomes faster at a higher temperature.
4. At higher temperatures, molecular motion becomes more rapid.
Choose the correct option:
