The mass of decimole of electrons (NA) is___________________?
The mass of decimole of electrons (NA) is___________________?
A. 1.008 mg
B. 0.184 mg
C. 0.054 mg
D. 5.4 mg
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Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?
Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?A. one / seventeen
B. sixteen / seventeen
C. one / three
D. two / threeWhich of following is not a base______________?
Which of following is not a base______________?A. KOH
B. NH3
C. PH3
D. BF3Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield __________________?
Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield __________________?A. primary alcohol
B. secondary alcohol
C. tertiary alcohol
D. dihydric alcoholIn rate expression the concentration of reactants is negative. It shows_______________?
In rate expression the concentration of reactants is negative. It shows_______________?A. Concentration of reactant does not change
B. Concentration of product increases
C. Concentration of reactant decreases
D. Concentration of reactant increases_____________ surfactants perform well over a wide range water hardness and PH?
_____________ surfactants perform well over a wide range water hardness and PH?A. Anionic
B. Cationic
C. Nonionic
D. NeutralThe potassium present in plant help the plant to___________________?
The potassium present in plant help the plant to___________________?A. form starch sugar and fibrous material
B. ripen the seeds and fruits
C. increase the resistance against disease
D. all the above statements are correct