Chemistry MCQs with answers Page - 45

Here, you will find a collection of MCQ questions on Chemistry. Go through these questions to enhance your preparation for upcoming examinations and interviews.

To check the correct answer, simply click the View Answer button provided for each question.

Have your own questions to contribute? Click the button below to share your MCQs with others!

+ Add Question

A

Admin • 833.24K Points
Coach

Q. Brass gets discoloured in air because of the presence of which of the following gases in air?

  • (A) Hydrogen sulphide
  • (B) Carbon dioxide
  • (C) Nitrogen
  • (D) Oxygen

A

Admin • 833.24K Points
Coach

Q. The molecular formula of phosphorous is

  • (A) P4
  • (B) P2
  • (C) P3
  • (D) P1

A

Admin • 833.24K Points
Coach

Q. The molecule which has the highest percentage of ionic character among the following is

  • (A) HI
  • (B) HBr
  • (C) HCI
  • (D) HF

A

Admin • 833.24K Points
Coach

Q. Which of the following is the poorest conductor of electricity?

  • (A) Copper
  • (B) Silver
  • (C) Aluminium
  • (D) Carbon

A

Admin • 833.24K Points
Coach

Q. The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of

  • (A) Sulphur
  • (B) Chlorine
  • (C) Fluorine
  • (D) Bromine

A

Admin • 833.24K Points
Coach

Q. Main pollutant present in automobile exhaust is

  • (A) CO
  • (B) CO2
  • (C) Hydrocarbons
  • (D) NO

A

Admin • 833.24K Points
Coach

Q. The liquid waste from kitchens and baths, of residences is known as :

  • (A) Domestic sewage
  • (B) Storm water
  • (C) Sullage
  • (D) Refuse

A

Admin • 833.24K Points
Coach

Q. Most poisonous pollutant in water is

  • (A) Zinc
  • (B) Phosphate
  • (C) Arsenic
  • (D) Detergent

A

Admin • 833.24K Points
Coach

Q. Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.
(A) Arsenic
(B) Sorbitol
(C) Fluoride
(D) Formaldehyde
(E) Uranium

  • (A) B, D and E
  • (B) A, B, C, D and E
  • (C) A, C and E
  • (D) A and C

A

Admin • 833.24K Points
Coach

Q. Smog is

  • (A) Nothing but black smoke
  • (B) A combination of smoke and fog
  • (C) A liquid particle resulting from vapour condensation
  • (D) A solid particle, e.g., fllyash

Add MCQ in this Category

If you want to share an MCQ question in this category, it's a great idea! It will be helpful for many other students using this website.

Share Your MCQ

Browse Categories

Click on category to learn MCQs of that category.