A. R-F
B. R-Cl
C. R-Br
D. R-I
✅ The correct answer is option D.
Chemistry MCQs
Compounds attracted by applied strong magnetic field are called
A. Diamagnetic
B. Paramagnetic
C. Good conductor
D. Ferromagnetic
✅ The correct answer is option B.
When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of the compound?
A. Bromine
B. Chlorine
C. Fluorine
D. Iodine
✅ The correct answer is option D.
Ethyl chloride with nascent hydrogen produces
A. Methane
B. Ethane
C. Propane
D. Butane
✅ The correct answer is option B.
The correct electronic configuration of Cr is
A. [Ar]4s23d4
B. [Ar] 4s23d4
C. [Ar]4s03d5
D. [Ar]4s13d5
✅ The correct answer is option D.
Which one of the following is not a meta directing group?
A. -CN
B. -OH
C. -COOH
D. -CHO
✅ The correct answer is option B.
Which one is not a nucleophile?
A. C2H5O-
B. SCN-
C. NH3
D. H3C+
✅ The correct answer is option D.
Which pair of groups contains both ortho & para directing groups
A. OH -RCO
B. NR3 -CN
C. OCH3 -CHO
D. N (CH3)2 -NH2
✅ The correct answer is option D.
The number of molecules taking part in the rate determining step is called
A. Order of reaction
B. Rate of reaction
C. The mole of a reaction
D. The extent of a reaction
✅ The correct answer is option A.
Which one of the following is termed as benzyl alcohol?
A. C6H5OH
B. C6H5CH(OH)2
C. C6H5CH2OH
D. C6H5COOH
✅ The correct answer is option C.