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

Which of the following statements are correct? Alkyl chlorides are lighter than water Tetrachloromethane is heavier than water Alkyl chlorides undergo nucleophilic substitution more easily than alkyl bromides Fluorobeznene can be prepared by sandmeyer's reaction

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

Assertion : Rate of hydrolysis of methyl chloride to methanol is higher in DMF than in water. Reason : Hydrolysis of methyl chloride follows second order kinetics.

Consider the following statements - 1. The sea water temperature of Red Sea is higher than that of Persian Gulf. 2. The Baltic Sea water is more saline than that of Black Sea. Which of the statements given above is/are correct?