Among the gases (i) – (v), the gases that cause greenhouse effect are: i. CO2 ii.H2O iii. CFC iv. O2 v. O3
Deforestation leads to unwanted effects like ___________. i. decreased habitat for animals ii. increased level of CO2 iii. decreased surrounding temperature iv. cleaner place v. global warming
Arrange the following: CH3CH2CH2Cl (I),CH3CH2CHClCH3 (II)(CH3)2CHCH2Cl (III)and(CH3)3C−Cl (IV) in order of decreasing tendency towards SN2 reaction