What is the Chemical formula of Zinc Hydroxide _________ ?
What is the Chemical formula of Zinc Hydroxide _________ ?
A. Zn(OH)2
B. ZNO2
C. Zn2(OH)3
D. ZnOH
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Study of Soil is called__________?A. Pedology
B. Pedagogy
C. sociology
D. DemographyCrystallization does not involve_______________?
Crystallization does not involve_______________?A. heating
B. sublimation
C. cooling
D. vaporizationWhich one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?
Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?A. primary alcohol
B. secondary alcohol
C. tertiary alcohol
D. dihydric alcoholIn a period electronegativity from left to right_________________?
In a period electronegativity from left to right_________________?A. Increases
B. Decreases
C. Remain constant
D. Variable trendUnit of rate of reaction is_________________?
Unit of rate of reaction is_________________?A. Moles dm-3 sec-1
B. Moles dm-3
C. Moles sec-1
D. Mol-1 dm3 sec-1Atom is made up of____________different kinds of subatomic particles:
Atom is made up of____________different kinds of subatomic particles:A. Three
B. Two
C. Four
D. None