evaporation
distillation
crystallization
sublimation
Correct answer is D
No explanation has been provided for this answer.
The principal constituent of natural gas is
methane
ethane
propane
butane
Correct answer is A
No explanation has been provided for this answer.
Which of the following is found in cotton
Starch
Cellulose
Fat
Oil
Correct answer is B
No explanation has been provided for this answer.
catalytic cracking
hydrocracking
polymerization
reforming
Correct answer is D
No explanation has been provided for this answer.
CH2O
C3H6O3
C6H12O6
C6H12O3
Correct answer is C
C - 40% ; 40/12 = 3.33
H - 6.7% ; 6.7/1 = 6.7
O - 53.3% ; 53.3/16 = 3.33
C = 3.33/3.33 = 1
H = 6.7/3.33 = 2
O = 3.33/3.33 = 1
CH2O
(CH2O)n = 180
(12 + 2 + 16)~n = 180
30n = 180
n = 6
= C6H12O6