Which of the following represents the correct electronic configuration of VII A group elements in the ground state ?
A. ns2p2
B. ns2p5
C. ns2p4
D. ns2p6
Submitted by :- Jamil Ahmed
CHEMISTRY
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Which one of the following is the weakest acid in water__________________?
A. HF
B. HCI
C. HBr
D. HI
Submitted by :- Jamil Ahmed
Which of the following statements is incorrect about fluorine_______________?
A. fluorine is restricted to -1 oxidation state
B. fluorine follows octet rule and as well as extended octet rule
C. fluorine has lowest dissociation energy among the halogens
D. both B and C
Submitted by :- Jamil Ahmed
The colour of chlorine gas is_______________?
A. pale yellow
B. greenish yellow
C. reddish brown
D. grayish black
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Which one of the following halogens is present in Teflon________________?
A. I2
B. Br2
C. Cl2
D. F2
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Removal of CO2 is called_____________________?
A. carboxylation
B. decarboxylation
C. esterification
D. hydroxylation
Submitted by :- Jamil Ahmed
Hydrogenolysis results in the formation of________________?
Alkanes are also known as________________?
A. saturated hydrocarbon
B. unsaturated hydrocarbon
C. paraffins
D. both A & C
Submitted by :- Jamil Ahmed