When alkyl halide is heated with dry Ag₂O, it produces

 

1.  ester
2.  ether
3.  ketone
4.  alcohol

 

Assertion:  is less acidic than  
Reason: F exerts better + mesomeric effect than Cl.

Assertion: Phenoxide ion on treatment with active alkyl halide (e.g., CH₂=CH-CH₂Cl) gives two products viz. O-substituted and C-substituted. 
Reason: Phenoxide ion is an ambident nucleophile.

Assertion: K, Rb and Cs form superoxides. 
Reason: The stability of the superoxides increases from ‘K’ to ‘Cs’ due to decrease in lattice energy.

Assertion: A catalyst increase the rate of a reaction. 
Reason: In presence of a catalyst, the activation energy of the reaction decreases.

Assertion: NaCl is less soluble in heavy water than in ordinary water. 
Reason: Dielectric constant of ordinary water is more than that of heavy water.

Assertion: Equal moles of different substances contain same number of constituent particles. 
Reason: Equal weights of different substances contain the same number of constituent particles.

Assertion: The catalytic converter in the car’s exhaust system converts polluting exhaust gases into non-toxic gases. 
Reason: Catalytic converter contains a mixture of transition metals and their oxides embedded in the inner support.

Assertion: As a lead storage battery gets discharged density of electrolyte, present in it, decreases. 
Reason: Lead and lead dioxide both react with sulphuric acid to form lead sulphate.