Chemistry Quiz 59 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. A solution includes

Correct Answer: C) Solute and solvent.

2. Blood plasma is an example of

Correct Answer: D) All of these.

3. The two nucleic acids.

Correct Answer: A) DNA, RNA.

4. Which of the choices below states the Law of conservation of mass?

Correct Answer: A) Mass of reactants = mass of products.

5. Which of the following is a pure substance?

Correct Answer: C) Water.

6. Which element found in all organic compounds?

Correct Answer: A) Carbon.

7. What is colorimeter?

Correct Answer: A) Instrument.

8. Which of the following will have a higher electronegativity than arsenic (As)?

Correct Answer: A) Carbon (C).

9. What causes an atom to be charged?

Correct Answer: A) Gain or loss of electrons.

10. Which of the following is not an element found in large abundance in organisms?

Correct Answer: A) Calcium.

11. Which of the following anions is polyatomic?

Correct Answer: C) Nitrite.

12. Which of following are storage polysaccharides?

Correct Answer: C) Starch and glycogen.

13. Which subatomic particle is positive?

Correct Answer: B) Proton.

14. The positive particles of an atom are

Correct Answer: D) Protons.

15. Which of these shows SI unit prefixes arranged in order from smallest to largest?

Correct Answer: B) Milli, centi, kilo.

16. It is a substance that the pressure exerted by its vapor when in equilibrium with its liquid or solid.

Correct Answer: A) Vapor pressure.

17. What is the mass number?

Correct Answer: B) The number of protons and neutrons.

18. What type of particle is:NO2

Correct Answer: B) Molecule.

19. Why do elements bond?

Correct Answer: A) To fill their outer shell.

20. Typically, when two atoms form a chemical bond, the expected result is that the electrons

Correct Answer: C) Will complete a noble gas configuration for both atoms.