The most powerful oxidizing agent among the halogens is__________________?
The most powerful oxidizing agent among the halogens is__________________?
A. F2
B. Cl2
C. Br2
D. I2
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Water has maximum density at __________________?
Water has maximum density at __________________?A. 0°C
B. 2°C
C. 4°C
D. 100°CHow many electrons are there in benzene to form delocalized electron cloud________________?
How many electrons are there in benzene to form delocalized electron cloud________________?A. 3
B. 4
C. 6
D. 8Arsenic oxides are removed by passing through_________________?
Arsenic oxides are removed by passing through_________________?A. Ferric hydroxide
B. Sodium hydroxide
C. Calcium hydroxide
D. Aluminium hydroxideAcid present in acid rain may be_________________?
Acid present in acid rain may be_________________?A. H2SO4
B. HNO3
C. both A and B
D. none of the aboveWhich one of following is not a property of pure quartz ?
Which one of following is not a property of pure quartz ?A. Coloured solid
B. Brittle
C. Hard
D. All of aboveThe main product of bacterial action is_________________?
The main product of bacterial action is_________________?A. Nox
B. NO2
C. N2O3
D. NO