Chemistry-
General
Easy
Question
The amount of sodium hydrogen carbonate, 
, in an antacid tablet is to be determined by dissolving the tablet in water and titrating the resulting solution with hydrochloric acid Which indicator is the most appropriate for this titration?
- Methyl orange,
- Bromothymol blue,
- Phenolphthalein,
- Alizarin yellow,
The correct answer is: Methyl orange,
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The correct order of basic strength is
The correct order of basic strength is
Chemistry-General
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4Three sparingly soluble salts that have same solubility products are given below:
II 
III 
Their solubilities in a saturated solution will be such that:
4Three sparingly soluble salts that have same solubility products are given below:
II
III
Their solubilities in a saturated solution will be such that:
Chemistry-General
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A) The aqueous solution of 
is alkaline in nature.
R) Acetate ion undergoes an ionic hydrolysis
A) The aqueous solution of is alkaline in nature.
R) Acetate ion undergoes an ionic hydrolysis
Chemistry-General
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A) At 
, the pH of 
M HCl is 8.
R) pH of acidic solution is always below 7 at
A) At , the pH of M HCl is 8.
R) pH of acidic solution is always below 7 at
Chemistry-General
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A) When small amount of an acid or base is added to pure water its pH undergoes a change
R) Addition of an acid or a base increases the degree of ionization of water
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R) Addition of an acid or a base increases the degree of ionization of water
Chemistry-General
Chemistry-
The weak acid, HA has a 
of 
. If 
of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closet to:
The weak acid, HA has a of . If of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closet to:
Chemistry-General
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The ionization constant of ammonium hydroxide is 
at 
. Hydrolysis constant of ammonium chloride is:
The ionization constant of ammonium hydroxide is at . Hydrolysis constant of ammonium chloride is:
Chemistry-General
Chemistry-
The molar solubility (in mol 
) of a sparingly soluble salt 
is The corresponding solubility product 
is given by the relation
The molar solubility (in mol ) of a sparingly soluble salt is The corresponding solubility product is given by the relation
Chemistry-General
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Acetyl salicylic acid 
called aspirin is a pain killer with 
= 2 If two tablets each of 0.09 g mass, containing aspirin are dissolved in 100 m solution Its pH will be:
Acetyl salicylic acid called aspirin is a pain killer with = 2 If two tablets each of 0.09 g mass, containing aspirin are dissolved in 100 m solution Its pH will be:
Chemistry-General
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Assuming compel. ionization witch will have maximum pH?
Assuming compel. ionization witch will have maximum pH?
Chemistry-General
Maths-
The solution set of 
in the interval 
is
The solution set of in the interval is
Maths-General
Maths-
is
is
Maths-General
Maths-
then the general value of 
is
then the general value of is
Maths-General
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The equation K 
possesses a solution if
The equation K possesses a solution if
Maths-General
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Mean life of a radioactive sample is 100 s. Then its half-life (in minutes) is
Mean life of a radioactive sample is 100 s. Then its half-life (in minutes) is
Physics-General
