Everyday Science MCQs

5120 MCQs  (Page 314 of 512)

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In case of gases Kc is replaced by_______________?
A. Ka
B. Kb
C. Kp
D. K
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When the value of Kc is very small then_______________________?
A. Reaction is at start
B. Product conc. is maximum
C. Reactant conc. is minimum
D. Reaction is completed
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Solubility of any salt can be determined from_______________?
A. Ka
B. Kb
C. Kc
D. Ksp
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By decreasing the pressure the reaction will go to that direction where_________________?
A. Volume is decreased
B. Volume increased
C. Heat absorbed
D. No. of moles of specie decreased
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Equilibrium state is achieved quickly by the addition of ________________?
A. Reactants
B. Acid
C. Base
D. Catalyst
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Which one of the following is a buffer solution ?
A. Brine
B. Blood
C. Glue
D. Solution of cuso4
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Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?
A. Buffer solution
B. Normal solution
C. Standard solution
D. Neutral solution
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Conjugated base of a weak acid is_________________?
A. Weak
B. Strong
C. Moderately weak
D. Unstable
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Kc value has_______________?
A. No units
B. Units
C. Both a & b
D. None
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Sodium benzoate and benzoic acid are mixed in equimolar ration to form buffer if pKa is 2 what will be the pH ?
A. 0
B. 1
C. 2
D. Any one
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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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