Questions

Metals react with sodium hydroxide to produce ___________.

The common name of lead (II) sulphide is

____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.

The only non-metal which is liquid at room temperature is

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
To put a spoke in one's wheel

In the following question, four words are given out of which one word is incorrectly spelt. Select the incorrectly spelt word.

In a Punnett Square with the cross AaBb x Aabb, how many AaBb genotypes would be created?

The connective tissue that connects a muscle to a bone is