Being all mammals, whale, dolphins, bat, monkey and horse have some common character but they also show conspicuous differences. This is due to phenomenon of

Assertion :- All mammals like whales, bats cheetah and human etc. share similarities in the pattern of bones of forelimbs. Reason :- Eutherians show good example of divergent evolution.

Assertion :- All mammals like whales, bats cheetah and human etc. share similarities in the pattern of bonse of forelimbs. Reason :- Eutherians show good example of divergent evolution.

Consider three P, Q, R, salts among them P and Q salts have different cations annd also have different coloured polyatomic anion due to charge transfer phenomenon while P and R salts have same cation but have different anions. Salts R decomposes into an acidic gas an a basic gas. Q. Salt R can not be:

Consider three P, Q, R, salts among them P and Q salts have different cations annd also have different coloured polyatomic anion due to charge transfer phenomenon while P and R salts have same cation but have different anions. Salts R decomposes into an acidic gas an a basic gas. Q. Salt R can not be:

The ionic bonds have partial covalent character and the covalent bonds also show some ionic character ii) NF_3 and NH_3 show dipole moment. But the dipole moment of NF_3 is less than that of NH_3 Why?