Preparation and Properties of Potassium Bicarbonate and Sulphate

Q.

Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the alkaline earth metals. (a) Nitrates (b) Carbonates (c) Sulphates.

Q. Given below are two statements :

Statement I : None of the alkaline earth metal hydroxides dissolve in alkali.

Statement II : Solubility of alkaline earth metal hydroxides in water increases down the group.

In the light of the above statements, choose the most appropriate answer from the options given below.

1. Statement I and Statement II both are correct
2. Statement I and Statement II both are incorrect
3. Statement I is incorrect but Statement II is correct
4. Statement I is correct but Statement II is incorrect

Q. Which of the following sulphate is most soluble in water?

1. 
2. 
3. 
4. 

Q. 74.5 g of metal chloride contains 35.5g of chlorine. What is the equivalent weight of metal??

Q. if mole fraction of solvent in solution decreases then 1.VP of solution increases 2.BP decreases 3.osmotic pressure increases 4. all are correct

Q. Equivalent mass of oxidant or reductant

Q. Which statement is incorrect??Why?? 1)Higher the gold number of lyophilic sol better is its protective action 2)Lower the gold number of a lyophilic sol better is its protective action 3)The Bredigs arc method is usually suitable for preparing sols of inert metals 4)The osmotic pressure method gives the average molar mass of a polymer

Q.

If the solubility product of CuS is 6 × 10⁻¹⁶, calculate the maximum molarity of CuS in aqueous solution.

Q.

Solubility of alkaline earth metal sulphates in water decreases in the sequence:

1. Sr > Ca > Mg > Ba

2. Ba > Mg > Sr > Ca

3. Mg > Ca > Sr > Ba

4. Ca > Sr> Ba > Mg

Q. If the mole fraction of zinc chloride in water is 0.3 what is molality of the solution?

Q. "Solubility of sulphates and carbonates of alkaline earth metals decreases as the atomic number of the metal increases down the group."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

Q.

What is the maximum concentration of equimolar solutions of ferrous sulphate and sodium sulphide so that when mixed in equal volumes, there is no precipitation of iron sulphide? (For iron sulphide, K_sp = 6.3 × 10^–18).

Q. In the complex [Pt(Py)4] [PtCl4] . The O.N. of Platinum atom in former and later part of compound are .? And how

Q. "Solubility of sulphates of alkaline earth metals increases going down the group."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

Q.

Equal volumes of 0.002 M solutions of sodium iodate and cupric chlorate are mixed together. Will it lead to precipitation of copper iodate? (For cupric iodate K_sp = 7.4 × 10^–8).

Q. mass percent of copper sulphate solution in aqueous solution is 2.2 % what is the mass percent of water in the solution

Q.

Solubility of alkaline earth metal sulphates in water decreases in the sequence:

1. Sr > Ca > Mg > Ba

2. Ba > Mg > Sr > Ca

3. Mg > Ca > Sr > Ba

4. Ca > Sr> Ba > Mg

Q.

Solubility of alkaline earth metal sulphates in water decreases in the sequence:

1. Sr > Ca > Mg > Ba

2. Ba > Mg > Sr > Ca

3. Mg > Ca > Sr > Ba

4. Ca > Sr> Ba > Mg

Q.

Solubility of alkaline earth metal sulphates in water decreases in the sequence:

1. Sr > Ca > Mg > Ba

2. Ba > Mg > Sr > Ca

3. Mg > Ca > Sr > Ba

4. Ca > Sr> Ba > Mg

Q.

Q. Gold number of a lyophilic sol is such property that:

1. the larger its value, the greater is the peptizing power
2. the lower its value, the greater is the peptizing power
3. the lower its value, the greater is the protecting power
4. the larger its value, the greater is the protecting power

Q.

Solubility of alkaline earth metal sulphates in water decreases in the sequence:

1. Sr > Ca > Mg > Ba

2. Ba > Mg > Sr > Ca

3. Mg > Ca > Sr > Ba

4. Ca > Sr> Ba > Mg

Q. Which of the following options are correct regarding the degree of dissociation of a weak electrolyte:

1. depends on the nature of solute and solvent
2. increases with increase in dilution
3. increases with increase in temperature
4. none of the above