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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Newspaper can be recycled again and again how many times ?
Newspaper can be recycled again and again how many times ?A. 2
B. 3
C. 4
D. 5Nitrate (NO3) ions are obtained by the process of __________?
Nitrate (NO3) ions are obtained by the process of __________?A. Nitrification
B. Fermentation
C. Denitrification
D. None of theseThe maximum number of electron in a sub shell with ? = 3fs______________?
The maximum number of electron in a sub shell with ? = 3fs______________?A. 6
B. 10
C. 14
D. 18Splitting of spectral lines when atom is subjected to magnetic field is called _______________?
Splitting of spectral lines when atom is subjected to magnetic field is called _______________?A. Zeemans effect
B. Starks effect
C. Photo electric effect
D. Compton effectWhich of the following is soluble in water?
Which of the following is soluble in water?A. AgF
B. AgCl
C. AgBr
D. AgIWhich of the following statements is false about transition metals?
Which of the following statements is false about transition metals?A. They form complexes
B. They show variable valency
C. All transition metal compounds are paramagnetic
D. They form coloured ions