Among the following, the weakest Bronsted base is
(a) F-
(b) Cl-
(c) Br-
(d) I-
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Species acting as both Bronsted acid and base is
(a) : According to BronstedLowry concept, a Bronsted acid is a substance which can donate a proton to any other substance and a Bronsted base is a substance which can...
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Which is the weakest out of HF, HCl, HBr and HI? (a) HF (b) HCl (c) HBr (d) HI
(a) HF, due to intermolecular H-bonding is weakest among HX acids
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The fact that a purine base always paired through hydrogen bonds with a pyrimidine base leads to, in the DNA double helix:
c. uniform width throughout DNA
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In a transistor, doping level in base is increased slightly. How will it affect (i) collector current and (ii) base current?
When doping level in base is increased slightly, (i) collector current decreases slightly and (ii) base current increases slightly
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A rapid increase in the rate of inflation is sometimes attributed to the “base effect”. What is “base effect”?
(c) Base effect is almost an ubiquitous term which says that the previous data affects the calculation of the current data.
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What will the conjugate bases for the following Bronsted acids: HF , H2SO4 HCO3 - and NH4 +
F- ,HSO4 - ,CO3 2- and NH3
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What will the conjugate acids for the following Bronsted bases? NH2- , NH3 and HCOO-
NH2- , NH3 and HCOO-
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Indicate whether the following compounds are Arrhenius , Bronsted or Lews acids and bases:
NH3(g) = Lewis base, CH3COOH(aq)= Arrhenius acid , CO2(g), BF3 ,Ag+ = Lewis acid and HCO3 -1 is a Bronsted acid.
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Four species: H2O HCO3 -1 HSO4 -1 and NH3 can act as both Bronsted acids and bases.
H2O =Conjugate acid -H3O+ ; Conjugate base -OH HCO3 -1 =Conjugate acid –H2O+ ; Conjugate base -OH
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H3BO3 is :- (a)Monobasic and a weak Lewis acid (b)Monobasic and a weak Bronsted acid
(a)Monobasic and a weak Lewis acid
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