Which of the following statement is/are correct?
a) Methyl chloride is lighter than water
b) Tetrachloromethane is lighter than water
c) Both 1 and 2
d) Alkyl chlorides undergo nucleophilic substitution more easily than alkyl bromides

Benzyl chloride undergoes nucleophilic substitution much more easily than chlorobenzene. Explain.

Which of the following substrates is/are more reactive than ethyl bromide for S_(N)2 reaction?

Which of the following statements is correct? a) X - ion is larger in size than X atom b) X^(+) ion is larger in size than X atom c) X^(+) ion is larger in size than X

In which of the following pairs first partner is more soluble in water than second partner ?

Which of the following statements are correct? 1. A sigma bond is stronger than a pi bond 2. A covalent bond is stronger than a hydrrogen bond 3. HF is more polar than HCl 4. There is one electrovalent bond and three covalent bonds in methylene chloride Select the correct answer using the codes given below

Which of the following statement is correct ? a) The triple point of water is 253.16 K. b) Burns from steam are less severe than those from boiling water. c) Ethyl alcohol expands less than mercury for the same rise in temperature. d) When fully inflated balloon is immersed in cold water, it will contract.

Assign appropriate reasons for each of the following statements. (i)More metal fluorides are ionic in nature than metal chlorides. (ii) Hydrogen fluoride is a weaker acid than hydrogen chloride in aqueous solution. (iii)In aqueous solution HI is a stronger acid than HCI ? (iv) Addition of Cl_(2) to KI solution gives it a brown colour but excess of Cl_(2) turns it colourless. (v) Perchloric acid is a stronger acid than sulphuric acid.

Which of the following are true regarding hydroboration of alkene ?( More than one correct statements . )

Explain the following: (a) More metal fluorides are ionic in nature than metal chlorides. (b) Perchloric acid is a stronger acid than sulphuric acid. (c ) Fluorine does not undergo disproportionation reactions but other halogens do.

Explain : Alkyl cyanides are more soluble in water than corresponding alkyl isocyanides.