Electronic Configuration of Calcium (Ca) atom may be written as________?
Electronic Configuration of Calcium (Ca) atom may be written as________?
A. Ne, 4p2
B. Ar, 4s2
C. Ne, 4s2
D. Kr,4p2
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Which one of the following alcohol has greater boiling point___________________?
Which one of the following alcohol has greater boiling point___________________?A. ethanol
B. ethylene glaycol
C. glycerol
D. methanolPhenol was isolated by Runge from________________?
Phenol was isolated by Runge from________________?A. vegetable oil
B. coaltar
C. wood
D. none of theseWhen 0.5 mole of phosphoric acid is dissolved in aqueous solution how many moles of -ve and +ve ions are collected altogether ?
When 0.5 mole of phosphoric acid is dissolved in aqueous solution how many moles of -ve and +ve ions are collected altogether ?A. 0.5
B. 1
C. 1.5
D. 2Formula of haloform is_________________?
Formula of haloform is_________________?A. HCOX
B. CX4
C. CHX3
D. CH3XPotassium Permanganate is used for purifying drinking water, because_________?
Potassium Permanganate is used for purifying drinking water, because_________?A. It is a sterilising agent.
B. It dissolves the impurities of water.
C. It is a reducing agent.
D. It is an oxidising agent.Which of the following is most soluble on water?
Which of the following is most soluble on water?A. BaSO4
B. SrSO4
C. CaSO4
D. MgSO4