General Knowledge: Chemistry Questions Answer GK Quiz

Chemistry Question Answer 2024, Chemistry Quiz Questions 2024

Q. Consider the following state­ments regarding the burning of magnesium ribbon in the air -
1. The white powder of MgO is formed.
2. It is an example of a com­bustion reaction.
3. Heat and light are produced.
Which of the statements given above is correct?

1) Only 1 and 2
2) Only 1 and 3
3) Only 2 and 3
4) All 1, 2 and 3

View Answer

Q. Which of the following state­ments with regard to heating lead nitrate powder over a flame is correct?
1. Brown fumes of NO are released.
2. Colourless O2 gas is relea­sed.
3. It is an example of an oxidation reaction.
4. It is an example of thermal decomposition used for the production of NO2 gas.
Select the correct answer using the code given below -

1) 1 and 2
2) 2, 3 and 4
3) 1, 3 and 4
4) Only 2 and 4

View Answer

Q. Which one of the following is not an oxidation reaction?
1) Rusting of iron
2) Opening of soda bottle
3) Rancidity
4) Combustion

View Answer

Q. The hydrogen bomb and the uranium bomb are based, res­pectively on -
1) nuclear fusion and fission
2) fission and thermonuclear fusion
3) geothermal fission and fusion
4) geothermal fusion and fission

View Answer

Q. What is the chemical composition of a soda-acid type fire extin­guisher?
1) Solution of sodium hydro­gen carbonate and sulfuric acid
2) Solution of sodium carbo­nate and sulfuric acid
3) Solution of carbon dioxide and sulfuric acid
4) Solution of sodium chloride and sulfuric acid

View Answer

Q. Consider the following state­ments -
While diluting concentrated nitric acid solution
(1) the concentration of (H3O+) ions/volume increases
(2) water must be added slowly to concentrated acid
(3) acid must be added slowly to water
Which of the statements given above is/are correct?

1) All 1, 2, and 3
2) Only 1 and 2
3) Only 3
4) Only 2 and 3

View Answer

Q. Which one of the following is the correct order of pH for the given substances?
1) Coffee < Lemon juice < Milk of magnesia < Blood
2) Milk of magnesia < Blood < Coffee < Lemon juice
3) Lemon juice < Blood < Coffee < Milk of magnesia
4) Lemon juice < Coffee < Blood < Milk of magnesia

View Answer

Q. Which one of the following is not true for an anodizing process?
1) It makes aluminium corro­sion resistant.
2) Metals like aluminium, titanium and magnesium can be anodized.
3) Clean aluminium article is the anode and oxygen gas is evolved at the cathode.
4) It is used in aircraft industry.

View Answer

Q. Naphthalene burns with a yellow sooty flame. This is because -
1) carbon to hydrogen ratio is low
2) there is incomplete combus­tion
3) there is an excess supply of air
4) of the presence of impurities of nitrogen and sulfur

View Answer

Q. Which of the following state­ments are true for the reaction of Fe2O3 with aluminium?
1. It is known as the 'thermite reaction'.
2. The heat evolved is used for welding purposes.
3. Aluminium metal acts as an oxidizing agent.
4. Molten Fe and Al are formed at the end of the reaction.
Select the correct answer using the code given below -

1) 1 and 2
2) 1 and 3
3) 2 and 4
4) 1 and 4

View Answer

Career Opportunities in Fashion Designing

Fashion design is a dynamic and creative field that offers innovative career openings for those with a passion for style, creativity, and invention. This composition will explore the colorful job prospects in the fashion design assiduity, the original hires one can anticipate, and punctuate some o →

Commonwealth of Independent States (CIS)

Foundation Date: December 8, 1991 Headquarters: The Republic of Belarus Executive Secretaries: Sergei Lebedev Member Countries: 12 Commonwealth of Independent States (CIS) was established on December 8, 1991, and the leaders of the Republic of Belarus, the Russian Federation, and Ukraine signed an a →

What is Bitcoin?

In 2009, an unknown programmer by the name of Satoshi Nakamoto put forward a whitepaper that proposed a creation of new form of digital currency - cryptocurrency. Cryptocurrency functions the same way as regular currencies do in that its used as a means of exchange, unit of account and a store of va →

Food Safety and Standards Authority of India (FSSAI)

Headquarter: New Delhi Function and Objective of the Organization: The Food Safety and Standards Authority of India (FSSAI)has been established under Food Safety and Standards Act, 2006 which consolidates various acts &amp; orders that have hitherto handled food-related issues in various Ministries →