Idea of pH and pOH was put forward by________________?
Idea of pH and pOH was put forward by________________?
A. Gibbs
B. Einstein
C. Sorenson
D. Chadwick
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The halogen which reacts very slowly with halogen is________________?
The halogen which reacts very slowly with halogen is________________?A. Fluorine
B. Chlorine
C. Bromine
D. Iodine_____________ 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. NeutralWhich one has the lowest density at room temperature ?
Which one has the lowest density at room temperature ?A. Ne
B. N2
C. NH3
D. COAmphoteric exides are those which possess ____________ properties?
Amphoteric exides are those which possess ____________ properties?A. Acidic
B. Basic
C. Acidic and basic
D. Neutral and acidicEssential amino acids are___________________?
Essential amino acids are___________________?A. 5
B. 10
C. 15
D. 20Which of the following haloalkane is hydrolysed by SN1 mechanism?
Which of the following haloalkane is hydrolysed by SN1 mechanism?A. CH3Br
B. CH3CH2Br
C. CH3CH2CH2Br
D. (CH3)3CBr