12th Class FSc Part 2 Chemistry Chapter Wise Online MCQ Test With Answer PDF

Chemistry Fsc Part 2 Online Test

Sr. #	Questions	Answers Choice
1	Cyanogen chloride reacts with ethyl magnesium bromide to give	CH<sub>3</sub>CH<sub>2</sub>Cl CH<sub>3</sub>CH<sub>2</sub>Br C<sub>4</sub>H<sub>10</sub><sup>+</sup> CH<sub>3</sub>CH<sub>2</sub>CN
2	For ----------------- Mechanism, the first step involved is the same	E1 and E2 E2 and S<sub>N</sub>2 S<sub>N</sub>1 and S<sub>N</sub>2 E1 and S<sub>N</sub>1
3	S_N2 mechanism involves	1st order kinetics 2nd order kinetics 3rd kinetics zero order kinetics
4	Elimination Bimolecular reactions involve	Second order kinetics First order kinetics Third order kinetics Zero order kinetics
5	------------------- is not a nucleophile	H<sub>2</sub>O NO<sub>3</sub> BF<sub>3</sub> NH<sub>3</sub>
6	S_N2 reactions can be carried out with	Primary alkylhalide Secondary alkyhalide Tertiary alkylhalide All of these
7	The most reactive Alkyl halide is	Alkyl Iodide Alkyl Bromide Alkyl fluoride Alkyl Chloride
8	In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms	Two Three One Four
9	Which compound is the most reactive one	benzene ethene ethane ethyne
10	During nitration of benzene, the active nitrating agent is	NO<sub>3</sub> NO<sub>2</sub><sup>+</sup> NO<sub>2</sub><sup>-</sup> HNO<sub>3</sub>
11	Amongst the following, the compound that can be most readily sulphonated is	toluene benzene nitrobenzene chlorobenzene
12	Which one is not a meta directing group	-COOH -CHO -COR -NH<sub>2</sub>
13	Amongst the following, the compound of that can be most readily sulphonated is	Toluene Benzene Nitro-benzene Chloro-benzene
14	m-choronitro benzene is prepared by	Nitration of chlorobenzene Nitration of Benzene Chlorination of Nitrobenzene Nitration of m-chlorobenzene
15	The electrophile in Aromatic sulphonation is	H<sub>2</sub>SO<sub>4</sub> HSO<sub>4</sub><sup>1-</sup> SO<sub>3</sub> SO<sub>3</sub><sup>1+</sup>
16	Which catalyst is used Friedel Crafts reactions	AlCl<sub>3</sub> BeCl<sub>2</sub> NaCl HNO<sub>3</sub>
17	Benzene cannot undergo	Substitution reactions addition reactions oxidation reactions elimination reactions

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