Greenhouse effect can be reduced by controlling
water evaporation
burning wood and fossil fuel
the use of aerosols
the use of artificial fertilizers
Correct answer is B
No explanation has been provided for this answer.
What is CaHb in the following equation? C a
H b + 5O2 → 3CO 2 + 4H2O
C 3H4
C3H6
C3H8
C 5H 10
Correct answer is C
No explanation has been provided for this answer.
Which of the following compounds is an alkanoate?
CH3COOH
CH3COOCH3
CH3CH2OH
CH3CH2COOH
Correct answer is B
No explanation has been provided for this answer.
What type of reaction occurs between vegetable oil and plant ash extract?
Displacement
Dehydration
Neutralization
Saponiflication
Correct answer is D
No explanation has been provided for this answer.
Which of the following industrial processes is chlorines not used?
Production of polyvinylchloride (PVC)
Manufacturing of hydrochloric acid
Manufacturing of common salt
Manufacturing of domestic bleach
Correct answer is C
No explanation has been provided for this answer.