Which of the following metal is used for making ornaments ?

________________________ metal is violet solid in appearance.

Which of the following is least reactive metal in each of the following ?

A non-metal used to preserve food stuffs is __________________

Which of the following are correct :

(a) Iodine is a violet solid.

(b) Oxygen and nitrogen are colorless gases.

Which of the following oxides is an amphoteric oxide? 

Which of the following are correct :

(a) Diamond has low density.

(b) Diamond has high density.

Which of the following are correct :

(a) Zinc is the most reactive and silver is the least reactive.

(b) Zinc reacts with copper sulphate to form zinc sulphate and copper.

(c) Sliver does not react with copper sulphate.

Which of the following are correct :

(a) The metals that can lose electrons easily and form positively charged ions are more reactive.

(b) The metals that do not lose electrons easily are less reactive.

(c) The metals that do not lose electrons easily are more reactive.

Which of the following are correct :

(a) The most abundant non - metal in the earth's crust is oxygen, which constitutes about 50% of the earth's crust.

(b) Sulphur is used in vulcanization of rubber, as fungicide and in manufacture of dyes, gun powder etc.

(c) A paste of iodine in petroleum jelly is used as pain reliver under the name Iodex.