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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

Alkyl halides are considered to be very reactive compounds towards nucleophile because_________________?
A they have an electrophilic carbon
B they have an electrophilic carbon & a good leaving group
C they have an electrophilic carbon & a bad leaving group
D they have a nucleophilic carbon & a good leaving group
Correct Answer: they have an electrophilic carbon
The common name of propane 1 3-dioic is_________________?
A Oxalic acid
B Aromatic acid
C Malonic acid
D Fumaric acid
Correct Answer: Malonic acid
For which mechanisms the first step involved is the same ?
A E1 + E2
B E2 + SN2
C E1 and SN1
D SN1 and SN2
Correct Answer: E1 and SN1
Which of the following is an unsaturated carboxylic acid___________________?
A malonic acid
B oxalic acid
C succinic acid
D maleic acid
Correct Answer: maleic acid
SN2 reaction can be best carried out with__________________?
A primary alkyl halide
B secondary alkyl halide
C tertiary alkyl halide
D all
Correct Answer: primary alkyl halide
Amino acids present in cheese___________________?
A lysine
B alanine
C tyrosine
D proline
Correct Answer: tyrosine
When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is _________________?
A propane
B propanoic acid
C propanal
D propanol
Correct Answer: propanoic acid
Which of the following has orange flavour__________________?
A isobutyl formate
B octyl acetate
C ethyl butyrate
D amyl lactate
Correct Answer: octyl acetate
When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?
A 2 moles of ethane
B 1 mole of ethane
C 2 moles of butane
D 1 mole of butane
Correct Answer: 1 mole of butane
Which of the following is not an ester_________________?
A amyl acetate
B sodium butyrate
C isobutyle formate
D octyl acetate
Correct Answer: sodium butyrate
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