Water molecule is________?
Water molecule is________?
A. V-shaped
B. Angular
C. Pyramidal
D. Triangular planer
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Phosphorus is a Greek word and it means_________________?
Phosphorus is a Greek word and it means_________________?A. Light bearing
B. Fire
C. Impure
D. TetrahedralA substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?
A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?A. C2H4
B. C3H6
C. C4H8
D. C5H10Which of the following factors help to measure quallity of water ?
Which of the following factors help to measure quallity of water ?A. DO
B. BOD
C. COD
D. all of the aboveIn borax bead test which compound is formed_________?
In borax bead test which compound is formed_________?A. Ortho burate
B. Meta borate
C. Double oxide
D. Tetra borateConversion of reactant into product in unit time is called________________?
Conversion of reactant into product in unit time is called________________?A. rate of forward reaction
B. rate of backward reaction
C. rate constant
D. rate co-efficientThe chemical composition of cinnabar is__________________?
The chemical composition of cinnabar is__________________?A. ZnS
B. PbS
C. HgS
D. FeS