EASY

Earn 100

$C O_{2}$ goes to air, causes green house effect and gets dissolved in water. What will be the effect on soil fertility and pH of the water?

25% studentsanswered this correctly

Important Questions on Environmental Chemistry

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

A weak acid is titrated with a weak base. Consider the following statements regarding the

pH

of the solution at the equivalence point:
(i)

pH

depends on the concentration of acid and base.
(ii)

pH

is independent of the concentration of acid and base
(iii)

pH

depends on the

{pK}_{a}

of acid and

{pK}_{b}

of base.
(iv)

pH

is independent of the

{pK}_{a}

of acid and

{pK}_{b}

of base.
The correct statements are:-

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

25^{o} C

, the ionization constant for anilinium hydroxide is

5.00 \times 10^{- 10}

. The hydrolysis constant of anilinium chloride is

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

50 mL

0.02 MNaOH

solution is mixed with

50 mL

0.06 M

acetic acid solution, the

pH

of the resulting solution is_________

(pKa

of acetic acid is

4.76, \log 5 = 0.70)

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

In the hydrolysis of a salt of weak acid and weak base, the hydrolysis constant

K_{h}

is equal to

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

{pK}_{a}

of a weak acid

(HA)

and

{pK}_{b}

of a weak base

(BOH)

are

3.2

and

3.4

respectively. The

pH

of their salt

(AB)

solution at

25^{o} C

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

The

pH

of ammonium phosphate solution, if

{pk}_{a}

of phosphoric acid and

{pk}_{b}

of ammonium hydroxide are

5.23

and

4.75

respectively, is

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Arrange the aqueous solutions of the following salts in the increasing order of their $pH$ .

$I . {CuSO}_{4} II . NaCN III . KCl$

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Which of the following salts will give highest

p H

in water?

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Which of the following salts is the most basic in aqueous solution?

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

The

p H

of a

0.02 M

N H_{4} C l

solution will be [Given:

K_{b} (N H_{4} O H) = 10^{- 5}

and

\log 2 = 0.301

]

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Which one of the following chemical agent is not being used for dry-cleaning of clothes?

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Green chemistry refers to reactions which_____

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Green chemistry in day-to-day life is in the use of:

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Which of the following practices will not come under green chemistry?

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Which of the following practices will not come under green chemistry?

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Modes of controlling pollution in large cities include:

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Green chemistry means such reactions which:

EASY

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Increased asthmatic attacks in certain seasons are related to

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Which of the following is not an example of green chemistry?

MEDIUM

Chemistry>Inorganic Chemistry>Environmental Chemistry>Green Chemistry

Which is not a renewable source

CO2 goes to air, causes green house effect and gets dissolved in water. What will be the effect on soil fertility and pH of the water?

Important Questions on Environmental Chemistry

Learn and Prepare for any exam you want !

$C O_{2}$ goes to air, causes green house effect and gets dissolved in water. What will be the effect on soil fertility and pH of the water?