What is meant by alternative negatives? Give five pairs of alternative negatives​

What is meant by bond pair of electrons ?

Negative of a negative integer

What is negative deviation?

Give alternative names for mRNA.

What is meant by positive and negative deviations from Raoult's law an dhow is the sign of Delta_(mix)H related to positive and negative deviations from Raoult's law ?

What is the other name of negative acceleration ?

.What is meant by root mean square value of alternating current? Derive an expression of r .m.s value of A.C