Choose the most appropriate answer from the options given below :(a) a

1.	Choose the most appropriate answer from the options given below :(a) a mixture of sand and ammonium chloride can be separated by(i) filtration(ii) distillation(iii) sublimation(iv) crystallisation(b) A pair of metalloids are(i) Na and Mg(ii) B and Si(iii) C and P(iv) He and Ar(c) Which of the following property is not shown by compounds ?(i) They are heterogeneous.(ii) They are homogeneous.(iii) They have definite molecular formulae.(iv) They have fixed melting and boiling points.(d) A solvent of Iodine is(i) Water(ii) Kerosene oil(iii) Alcohol(iv) Petrol(e) Which of the gas is highly soluble in water ?(i) Ammonia(ii) Nitrogen(iii) Carbon monoxide(iv) Oxygen
Answer» Choose the most appropriate answer from the options given below : (a) a mixture of sand and ammonium chloride can be separated by (i) filtration (ii) distillation (iii) sublimation (iv) crystallisation (b) A pair of metalloids are (i) Na and Mg (ii) B and Si (iii) C and P (iv) He and Ar (c) Which of the following property is not shown by compounds ? (i) They are heterogeneous. (ii) They are homogeneous. (iii) They have definite molecular formulae. (iv) They have fixed melting and boiling points. (d) A solvent of Iodine is (i) Water (ii) Kerosene oil (iii) Alcohol (iv) Petrol (e) Which of the gas is highly soluble in water ? (i) Ammonia (ii) Nitrogen (iii) Carbon monoxide (iv) Oxygen

Choose the most appropriate answer from the options given below :(a) a mixture of sand and ammonium chloride can be separated by(i) filtration(ii) distillation(iii) sublimation(iv) crystallisation(b) A pair of metalloids are(i) Na and Mg(ii) B and Si(iii) C and P(iv) He and Ar(c) Which of the following property is not shown by compounds ?(i) They are heterogeneous.(ii) They are homogeneous.(iii) They have definite molecular formulae.(iv) They have fixed melting and boiling points.(d) A solvent of Iodine is(i) Water(ii) Kerosene oil(iii) Alcohol(iv) Petrol(e) Which of the gas is highly soluble in water ?(i) Ammonia(ii) Nitrogen(iii) Carbon monoxide(iv) Oxygen

Answer»

Choose the most appropriate answer from the options given below :

(a) a mixture of sand and ammonium chloride can be separated by

(i) filtration

(ii) distillation

(iii) sublimation

(iv) crystallisation

(b) A pair of metalloids are

(i) Na and Mg

(ii) B and Si

(iii) C and P

(iv) He and Ar

(i) They are heterogeneous.

(ii) They are homogeneous.

(iii) They have definite molecular formulae.

(iv) They have fixed melting and boiling points.

(d) A solvent of Iodine is

(i) Water

(ii) Kerosene oil

(iii) Alcohol

(iv) Petrol

(e) Which of the gas is highly soluble in water ?

(i) Ammonia

(ii) Nitrogen

(iii) Carbon monoxide

(iv) Oxygen