What is the minimum pH required to prevent the precipitation of ZnS in a solution which is 0.01 M ZnCl2 and saturated with 0.1 M H2S? ( textK) textsp textof ( textZnS) text= ( text10)- text21 text, ( textK)( texta) text1 text× ( textK)( texta) text2 (( textH) text2 textS) text= ( text10)- text20

Questions from NTA Abhyas 2022

1. According to the Valence bond theory, which statement is incorrect regarding bonding between two carbon atoms?

2. 3. Which of the following is not found in nucleotides?

4. Hybridisation, shape and magnetic moment of is

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5. In the reaction

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1. If for a certain reaction is at , the value of (in for which the same reaction will be spontaneous at the same temperature is

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2. If of a non-electrolyte solute is dissolved in of n-octane to reduce its vapour pressure to , the molar mass (in of the solute is [Given that molar mass of n-octane is

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3. At standard conditions, if the change in the enthalpy for the following reaction is Given that bond energy of and is and , respectively, what is the bond energy (in of ?

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4. An organic compound contains (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of is is ]

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5. The density of 2 M aqueous solution of NaOH is 1.28 g/cm. The molality of the solution is
[Given that molecular mass of NaOH = 40 g mol]

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6. Given below are half cell reactions:

Will the permanganate ion, liberate from water in the presence of an acid ?

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7. In water saturated air the mole fraction of water vapour is . If the total pressure of the saturated air is , the partial pressure of dry air is :

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8. Following limiting molar conductivities are given as

for will be-

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9. One atom of an element weighs . Its atomic mass is

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10. In the following reaction,
A,
the number of sigma(s) bonds present in the product A is :-

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Q. What is the minimum pH required to prevent the precipitation of ZnS in a solution which is 0.01 M and saturated with 0.1 M

4

3

2

1

Questions from NTA Abhyas 2022

1. According to the Valence bond theory, which statement is incorrect regarding bonding between two carbon atoms?

2.

3. Which of the following is not found in nucleotides?

4. Hybridisation, shape and magnetic moment of is

5. In the reaction

Chemistry Most Viewed Questions

1. If for a certain reaction is at , the value of (in for which the same reaction will be spontaneous at the same temperature is

2. If of a non-electrolyte solute is dissolved in of n-octane to reduce its vapour pressure to , the molar mass (in of the solute is [Given that molar mass of n-octane is

3. At standard conditions, if the change in the enthalpy for the following reaction is Given that bond energy of and is and , respectively, what is the bond energy (in of ?

4. An organic compound contains (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of is is ]

5. The density of 2 M aqueous solution of NaOH is 1.28 g/cm. The molality of the solution is
[Given that molecular mass of NaOH = 40 g mol]

6. Given below are half cell reactions:

Will the permanganate ion, liberate from water in the presence of an acid ?

7. In water saturated air the mole fraction of water vapour is . If the total pressure of the saturated air is , the partial pressure of dry air is :

8. Following limiting molar conductivities are given as

for will be-

9. One atom of an element weighs . Its atomic mass is

10. In the following reaction,
A,
the number of sigma(s) bonds present in the product A is :-

Latest Updates

Q. What is the minimum pH required to prevent the precipitation of ZnS in a solution which is 0.01 M and saturated with 0.1 M

4

3

2

1

Questions from NTA Abhyas 2022

1. According to the Valence bond theory, which statement is incorrect regarding bonding between two carbon atoms?

2.

3. Which of the following is not found in nucleotides?

4. Hybridisation, shape and magnetic moment of is

5. In the reaction

Chemistry Most Viewed Questions

1. If for a certain reaction is at , the value of (in for which the same reaction will be spontaneous at the same temperature is

2. If of a non-electrolyte solute is dissolved in of n-octane to reduce its vapour pressure to , the molar mass (in of the solute is [Given that molar mass of n-octane is

3. At standard conditions, if the change in the enthalpy for the following reaction is Given that bond energy of and is and , respectively, what is the bond energy (in of ?

4. An organic compound contains (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of is is ]

5. The density of 2 M aqueous solution of NaOH is 1.28 g/cm. The molality of the solution is [Given that molecular mass of NaOH = 40 g mol]

6. Given below are half cell reactions: Will the permanganate ion, liberate from water in the presence of an acid ?

7. In water saturated air the mole fraction of water vapour is . If the total pressure of the saturated air is , the partial pressure of dry air is :

8. Following limiting molar conductivities are given as for will be-

9. One atom of an element weighs . Its atomic mass is

10. In the following reaction, A, the number of sigma(s) bonds present in the product A is :-

Latest Updates

5. The density of 2 M aqueous solution of NaOH is 1.28 g/cm. The molality of the solution is
[Given that molecular mass of NaOH = 40 g mol]

6. Given below are half cell reactions:

Will the permanganate ion, liberate from water in the presence of an acid ?

8. Following limiting molar conductivities are given as

for will be-

10. In the following reaction,
A,
the number of sigma(s) bonds present in the product A is :-