(a) Dimethyl ether and ethanol have same molecular weight but their volatilities are different-explain. (b) find out the bond order of `H_(2)^(+)` ion.

(i) Why are the bond angles of NH_(3) and H_(2)O less than the normal values of the regular tetrahedron bond angles inspite of being sp^(3) hybridised? (ii) Find out the bond order of H_(2)^(+) ion.

An ether is more volatile than alcohol having the same molecular formula. This is due to:

Explain : HCOOH and C_2H_6OH having same molecular weight, yet boiling point of HCOOH is higher than ethanol.

Explain why alcohols and ethers of comparable molecular mass have different boiling points?

The hybridisation of oxygen in both water and diethyl ether molecules is the same but they differ in their bond angles. Explain.

Compare the bond angle of the molecules NH_3 H_2O and CH_4 . Which theory is involved in explain the difference of bondangle?

This question has statement I and Statement II. Of the four choices given after the statements, choose the one that best describes the two Statements. (1) Statement-I is true, Statement-II is true, Statement-II is a correct explanation of Statement-I (2) Statement-I is true, Statement-II is true,Statement-II is not a correct explanation of Statement-I (3)Statement-I is a true , Statement-II is false (4) Statement-I is false, Statement-II is true Statement 1 : The bond order in a molecule can have any value, positive or negative, integral or fractional or zero. Statement 2 : The bond order of a molecule depends upon the number of electrons in the bonding and antibonding molecular orbitals.

In spite of having the same molecular mass , boiling point of ethanol is lesser than that of formic acid. Explain

Ethanol boils at a higher temperature than diemthyl ether, even though they have same molecular formula-explain.