plastic sulphur
amorphous sulphur
rhombic sulphur
monoclinc sulphur
colloidal sulphur
Correct answer is C
rhombic Sulphur is prepared by allowing a saturated solution of Sulphur in carbon (iv) sulphide to evaporate slowly and crystals will gradually be deposited.
1/2 x 6.02 x 10 23
1 x 6.02 x10 23
2 x 6.02 x 10 23
3x 6.02 x 10 23
4x 6.02 x 10 23
Correct answer is B
No explanation has been provided for this answer.
Which of the following is used extensively in manufacturing photographic chemicals?
Aluminium chloride
Zinc chloride
Silver chloride
Mercury (ll) chloride
lron (ll) chloride
Correct answer is C
No explanation has been provided for this answer.
1.00
0.40
0.20
0.10
0.01
Correct answer is D
No explanation has been provided for this answer.
Octane number is highest in petrol containing a high proportion of
heptane
octane
2-methylpentane
2, 4-dimethylpentane
2,2,4-trimethylpentane
Correct answer is E
No explanation has been provided for this answer.