Oxidation state +1 for phosphorous is found in___________?
Oxidation state +1 for phosphorous is found in___________?
A. H3PO3
B. H3PO4
C. H3PO2
D. H2P2O7
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Which one of the following is a bridge element?
Which one of the following is a bridge element?A. Be
B. Cl
C. K
D. PThe quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?
The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?A. vaporization
B. evaporation
C. crystallization
D. sublimationElements with similar chemical properties appear in the_________________?
Elements with similar chemical properties appear in the_________________?A. Same family
B. Same period
C. p block elements
D. Right upper cornerThe cooling of molten urea by air in the tower is called______________________?
The cooling of molten urea by air in the tower is called______________________?A. prilling
B. evaporation
C. condensation
D. crystallizationWhich of the following element has the maximum electron affinity_____?
Which of the following element has the maximum electron affinity_____?A. Cl
B. Br
C. I
D. FAngle of deflection was studied by________________?
Angle of deflection was studied by________________?A. Hitorff
B. Stoney
C. William Crookes
D. J.Perrin