All mammals (except a few) have __________ cervical vertebra.

All alkali metals have ______melting and boiling points

Mammals have teeth of this type

Skin of mammals is unique in having

All common amino acids except one react with cold nitrous acid (HNO_(2)) and evolve nitrogen gas, that amino acid is

All types of tissue systems have

Now observe carefully all the materials that you have listed above as metals:Do all these look alike ?

Now observe carefully all the materials that you have listed above as metals:Do all of them shine ?

Assertion (A): Noble gases have very low boiling points. Reason (R): All noble gases have general electronic configuration of ns^(2)np^(6) (except He).

Assertion (A): Noble gases have very low boiling points. Reason (R): All noble gases have general electronic configuration of ns^(2)np^(6) (except He).