Everyday Science MCQs

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The common thing in phthalic acid and oxalic acid is that both are_________________?
A. Aromatic
B. Dicarboxylic
C. Hydrocarbons
D. Strong acids
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The acid which is used as ink remover is_________________?
A. Oxalic acid
B. Succinic acid
C. Adipic acid
D. Acetic acid
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Which acid is the manufacture of synthetic rubber ?
A. Acetic acid
B. Formic acid
C. Carbonic acid
D. Benzoic acid
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In the formation of Zwitter ions proton goes from____________________?
A. Carboxyl to amino group
B. Amino to carboxyl group
C. Amino group only
D. Carboxyl group only
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Which one of the following is not a periodic property ?
A. Melting point of elements
B. Boiling point of elements
C. Ionization energy of elements
D. Coordination number of ions
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Which discovery caused a revision in the periodic law as stated by Mendeleev ?
A. Location of nucleus by rutherford
B. Atomic number by moseley
C. X-rays by roentgen
D. Natural radioactivity by henry bacquerel.
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The property which increases upto group IV-A then decreases on wards_______________?
A. Ionization energy
B. Atomic radii
C. Melting & boiling points
D. Atomic volume
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Deuterium reacts with oxygen to form________________?
A. Hard water
B. Heavy water
C. Soft water
D. Water gas
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Ionization energy depends upon____________________?
A. Nuclear charge
B. Atomic size
C. Shielding effect
D. I.e depends upon all of the above and nature of orbital
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Addition of 2nd electron to a uni negative ion is always____________________?
A. Exothermic
B. Endothermic
C. Data is insufficient
D. Unpredictable
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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