Metals and Non-...

During the formation of ionic bond ________transfer takes place from one atom to the others.

Generally, pure metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except $$Mn$$ and $$Mg$$)?

What happens when calcium is treated with water?
(i) It does not react with water
(ii) It reacts violently with water
(iii) It reacts less violently with water
(iv) Bubbles of hydrogen gas formed stick to the surface of calcium

Which of the following pairs of substances, on reaction, will not evolve $$H_{2}$$ gas?

Prevention of corrosion of iron by $$Zn$$ coating is called:

Which of the following metals are refined by electrolytic refining?

The state in which $$NaCl$$ is a bad conductor of electricity is _________ and the state in which $$NaCl$$ is a good conductor of electricity is __________.

In an ionic compound, cations and anions are held together by:

Which of the following conducts electricity?

Which one of the following four metals would be displaced from the solution of its salts by other three metals?