Vinegar is a liquid consisting mainly of acetic acid $\left(\mathrm{CH}_3 \mathrm{COOH}\right)$ and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. Vinegar is now mainly used as a cooking ingredient.
CG PET-2004
Ionic Equilibrium
229611
The $\mathrm{pH}$ of water decreases with?
1 Increase in temperature
2 Increase in pressure
3 Decrease in temperature
4 Decrease in pressure
Explanation:
An Increase in temperature increases $\mathrm{K}_\pi$ and a decreases in temperature decreases $\mathrm{K}_{\mathrm{i}}$. The neutral $\mathrm{pH}$ point depends on the $\mathrm{K}_\pi$ of water where both $\mathrm{H}$ and $\mathrm{OH}$ ion are equal in number. Hence, $\mathrm{pH}$ of water decreases with increase in temperature.
CG PET-2005
Ionic Equilibrium
229612
The aqueous solution of which one of the following is basic?
1 $\mathrm{HOCl}$
2 $\mathrm{NaHSO}_4$
3 $\mathrm{NH}_4 \mathrm{NO}_3$
4 $\mathrm{NaOCl}$
Explanation:
The mixture of strong base and weak acid is basic solution. Hence, $\mathrm{NaOCl}$ is a mixture of strong base and weak acid. So, aqueous solution is basic.
CG PET-2005
Ionic Equilibrium
229527
Which of the following can act both as Bronsted acid and Bronsted base? (i) $\mathrm{HCO}_3^{-}$(ii) $\mathrm{NH}_3$ (iii) $\mathrm{O}^{2-}$ (iv) $\mathrm{HCl}$
1 (i) and (ii)
2 (ii) and (iii)
3 None of the above
4 All of the above
Explanation:
Those substance which accept the proton are called Bronsted base and which is donate the proton are called Bronsted acid. $\mathrm{HCO}_3^{-}+\mathrm{H}^{+}=\mathrm{H}_2 \mathrm{CO}_3$ Bronsted base. $\mathrm{HCO}_3^{-}=\mathrm{H}^{+}+\mathrm{CO}_3^{2-}$ Bronsted acid.
Vinegar is a liquid consisting mainly of acetic acid $\left(\mathrm{CH}_3 \mathrm{COOH}\right)$ and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. Vinegar is now mainly used as a cooking ingredient.
CG PET-2004
Ionic Equilibrium
229611
The $\mathrm{pH}$ of water decreases with?
1 Increase in temperature
2 Increase in pressure
3 Decrease in temperature
4 Decrease in pressure
Explanation:
An Increase in temperature increases $\mathrm{K}_\pi$ and a decreases in temperature decreases $\mathrm{K}_{\mathrm{i}}$. The neutral $\mathrm{pH}$ point depends on the $\mathrm{K}_\pi$ of water where both $\mathrm{H}$ and $\mathrm{OH}$ ion are equal in number. Hence, $\mathrm{pH}$ of water decreases with increase in temperature.
CG PET-2005
Ionic Equilibrium
229612
The aqueous solution of which one of the following is basic?
1 $\mathrm{HOCl}$
2 $\mathrm{NaHSO}_4$
3 $\mathrm{NH}_4 \mathrm{NO}_3$
4 $\mathrm{NaOCl}$
Explanation:
The mixture of strong base and weak acid is basic solution. Hence, $\mathrm{NaOCl}$ is a mixture of strong base and weak acid. So, aqueous solution is basic.
CG PET-2005
Ionic Equilibrium
229527
Which of the following can act both as Bronsted acid and Bronsted base? (i) $\mathrm{HCO}_3^{-}$(ii) $\mathrm{NH}_3$ (iii) $\mathrm{O}^{2-}$ (iv) $\mathrm{HCl}$
1 (i) and (ii)
2 (ii) and (iii)
3 None of the above
4 All of the above
Explanation:
Those substance which accept the proton are called Bronsted base and which is donate the proton are called Bronsted acid. $\mathrm{HCO}_3^{-}+\mathrm{H}^{+}=\mathrm{H}_2 \mathrm{CO}_3$ Bronsted base. $\mathrm{HCO}_3^{-}=\mathrm{H}^{+}+\mathrm{CO}_3^{2-}$ Bronsted acid.
Vinegar is a liquid consisting mainly of acetic acid $\left(\mathrm{CH}_3 \mathrm{COOH}\right)$ and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. Vinegar is now mainly used as a cooking ingredient.
CG PET-2004
Ionic Equilibrium
229611
The $\mathrm{pH}$ of water decreases with?
1 Increase in temperature
2 Increase in pressure
3 Decrease in temperature
4 Decrease in pressure
Explanation:
An Increase in temperature increases $\mathrm{K}_\pi$ and a decreases in temperature decreases $\mathrm{K}_{\mathrm{i}}$. The neutral $\mathrm{pH}$ point depends on the $\mathrm{K}_\pi$ of water where both $\mathrm{H}$ and $\mathrm{OH}$ ion are equal in number. Hence, $\mathrm{pH}$ of water decreases with increase in temperature.
CG PET-2005
Ionic Equilibrium
229612
The aqueous solution of which one of the following is basic?
1 $\mathrm{HOCl}$
2 $\mathrm{NaHSO}_4$
3 $\mathrm{NH}_4 \mathrm{NO}_3$
4 $\mathrm{NaOCl}$
Explanation:
The mixture of strong base and weak acid is basic solution. Hence, $\mathrm{NaOCl}$ is a mixture of strong base and weak acid. So, aqueous solution is basic.
CG PET-2005
Ionic Equilibrium
229527
Which of the following can act both as Bronsted acid and Bronsted base? (i) $\mathrm{HCO}_3^{-}$(ii) $\mathrm{NH}_3$ (iii) $\mathrm{O}^{2-}$ (iv) $\mathrm{HCl}$
1 (i) and (ii)
2 (ii) and (iii)
3 None of the above
4 All of the above
Explanation:
Those substance which accept the proton are called Bronsted base and which is donate the proton are called Bronsted acid. $\mathrm{HCO}_3^{-}+\mathrm{H}^{+}=\mathrm{H}_2 \mathrm{CO}_3$ Bronsted base. $\mathrm{HCO}_3^{-}=\mathrm{H}^{+}+\mathrm{CO}_3^{2-}$ Bronsted acid.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Ionic Equilibrium
229609
The acid present in vinegar is
1 $\mathrm{CH}_3 \mathrm{COOH}$
2 $\mathrm{H}_2 \mathrm{SO}_4$
3 $\mathrm{HCl}$
4 $\mathrm{HNO}_3$
Explanation:
Vinegar is a liquid consisting mainly of acetic acid $\left(\mathrm{CH}_3 \mathrm{COOH}\right)$ and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. Vinegar is now mainly used as a cooking ingredient.
CG PET-2004
Ionic Equilibrium
229611
The $\mathrm{pH}$ of water decreases with?
1 Increase in temperature
2 Increase in pressure
3 Decrease in temperature
4 Decrease in pressure
Explanation:
An Increase in temperature increases $\mathrm{K}_\pi$ and a decreases in temperature decreases $\mathrm{K}_{\mathrm{i}}$. The neutral $\mathrm{pH}$ point depends on the $\mathrm{K}_\pi$ of water where both $\mathrm{H}$ and $\mathrm{OH}$ ion are equal in number. Hence, $\mathrm{pH}$ of water decreases with increase in temperature.
CG PET-2005
Ionic Equilibrium
229612
The aqueous solution of which one of the following is basic?
1 $\mathrm{HOCl}$
2 $\mathrm{NaHSO}_4$
3 $\mathrm{NH}_4 \mathrm{NO}_3$
4 $\mathrm{NaOCl}$
Explanation:
The mixture of strong base and weak acid is basic solution. Hence, $\mathrm{NaOCl}$ is a mixture of strong base and weak acid. So, aqueous solution is basic.
CG PET-2005
Ionic Equilibrium
229527
Which of the following can act both as Bronsted acid and Bronsted base? (i) $\mathrm{HCO}_3^{-}$(ii) $\mathrm{NH}_3$ (iii) $\mathrm{O}^{2-}$ (iv) $\mathrm{HCl}$
1 (i) and (ii)
2 (ii) and (iii)
3 None of the above
4 All of the above
Explanation:
Those substance which accept the proton are called Bronsted base and which is donate the proton are called Bronsted acid. $\mathrm{HCO}_3^{-}+\mathrm{H}^{+}=\mathrm{H}_2 \mathrm{CO}_3$ Bronsted base. $\mathrm{HCO}_3^{-}=\mathrm{H}^{+}+\mathrm{CO}_3^{2-}$ Bronsted acid.
