Chemistry - Questions and Answers, General Study (GK)

Home » General Study » Chemistry - Questions and Answers Objective Questions

Chemistry - Questions and AnswersPage 51

501.

Consider the following statements.
1. Metallic bond are malleable and ductile.
2. Covalent compounds are generally non-conductor of electricity.
3. Ionic compounds are good conductor of electricity in molten or liquid state.
which of the statements given above are correct?

(a)1 and 2

(b)2 and 3

(d)1, 2 and 3

Comment

Answer is: D

502.

Colloidal solution commonly used in the treatment of eye diseaseis

(a)Colloidal silver

(b)Colloidal gold

(c)Colloidal antimony

(d)Colloidal suphur

Comment

Answer is: C

503.

1 L solution contains 490 g of sulphuric acid is diluted to 10 L with water. What is the normality of the resulting solution?

(a)0.5 N

(b)1 N

(d)10 N

Comment

Answer is: B

504.

Which of the following properties are characteristics of lyophobic sols?
1. Low viscosity
2. High viscosity
3. Reversibility
4. Coagulation by electrolytes at low concentrations
Select the correct answer using the code given below.

(a)1, 3 and 4

(b)2 and 3

(d)1 and 3

Comment

Answer is: C

505.

Consider the solubility of silver chloride in 0.1 M solution of
1. Potassium chloride
2. Potassium nitrate
3. Potassium bromide
The correct order indicating a decrease in the solubility will be

(a)1 > 2 > 3

(b)2 > 3 > 1

(d)3 > 2 > 1

Comment

Answer is: C

506.

An ideal solution is formed when its components
1. Can be converted into gases
2. Obey Rault's law
3. Have no change of volume
4. Have zero heat of mixing
Which of the above statement is/are correct?

(a)Only 1

(b)2, 3 and 4

(c)Only 2

(d)3 and 4 only

Comment

Answer is: B

507.

Consider the following
At constant pressure, boiling point of a solution is greater than the boiling point of its pure liquid solvent because
1. Solute is non-electrolyte.
2. Solute is non-volatile.
3. Chemical potential of solvent in solution is less than the chemical potential of solvent in its pure state at constant pressure.
Which of the above are correct?

(a)1, 2 and 3

(b)1 and 2

(d)2 and 3

Comment

Answer is: D

508.

Which one of the following will not function as buffer solution?

(a)Borax + Boric acid

(b)NaH₂PO₄

(c)NaCl + NaOH

(d)NH₄Cl + NH₄OH

Comment

Answer is: C

509.

Consider the following statements
1. Azeotropic mixtures are constant temperature boiling mixture.
2. Azeotropic mixtures are those which boils at different temperatures.
3. Azeotropic mixture of two solids
Which of the above is/are true?

(a)Only 1

(b)Only 2

(c)Only 3

(d)1, 2 and 3

Comment

Answer is: A

510.

Surface tension of a liquid decreases with
1. Increase in temperature of the liquid.
2. Mixing of detergent in the liquid.
3. Decrease in temperature.
Which of the statement given below are correct?

(a)2 and 3

(b)1 and 2

(c)Only 2

(d)Only 1

Comment

Answer is: B

Comments

No comment yet.

Chemistry - Questions and AnswersPage 51

Comments

Similar GS Topics

Top 10 List

Miscellaneous

Follow us on YouTube

Links

Social links

For Coaching Class/Schools

Subscribe for updates