a. Molarity b. Molality c. Formality d. Normality Ans. b Explanation : Calculation of molality does not have a volume component. (16)
mol-1 is dissolved in 100 mL of water to obtain a solution whose density is 1.25 g mL-1 The molarity and molality of the solution are respectively a. 0.75 and 1 b. 0.8 and 1 c. 1 and 0.8 d. 1 …
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and …
(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion …
a. 1m b. 0.5 m c. 0.2 m d. 2m Ans. c (6)
a. ppm by weight of MgSO4 b. g/L of CaCO3 and MgCO3 c. ppm by weight of CaCO 3 irrespective of whether it is actually present d. ppm of CaCO3 actully present in water Ans. c (8)
(a) The work done per unit area in increasing the surface area of a liquid under isothermal condition (b) The work done per unit area in increasing the surface area of a liquid under adiabatic condition (c) The work done …
a. 14 b. 3.2 c. 4 d. 2 Ans. b (8)
(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion …
(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion …
(a) 280 π dyne (b) 250 π dyne (c) 140 π dyne (d) 210 π dyne Ans. a (37)
a. 0.027 b. 0.036 c. 0.018 d. 0.009 Ans. c (9)
a. 250 b. 200 c. 400 d. 1000 Ans. c (6)
(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion …
a. Molality b. Weight fraciton of solute c. Fraction of solute present in water d. Mole fraction Ans. c Explanation : Since fraction of solute present in water depends on the volume of water, it will change with the increase …
a. o.177 b. 1.770 c. 0.0354 d. 0.0177 Ans. d (5)
H2 O. The mole fraciton of urea is a. 10/10.1 b. 10.1/10 c.10.1/0.1 d. 0.1/10.1 Ans. d (9)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
a. 1000 g of the solvent b. One litre of the solvent c. One litre of the solution d. 22.4 litres of the solution Ans. a Explanation : The number of moles of solute dissolved in 1000 g of the …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
CaCO3 contains 10 gms of carbonate. Concentration of the solution is a. 10 ppm b. 100 ppm c. 1000 ppm d. 10000 ppm Ans. d (10)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
H2 O2 is a. 77/68 b. 68/77 c. 20/80 d. 80/20 Ans. b (40)
a. Gram per million b. Milligram percent c. Microgram percent d. Nano gram percent e. Part per million Ans. e (11)
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (c) If assertion is …
a. 0. 176 b. 3. 52 c. 1. 78 d. 0.88 e. 17. 8 Ans. c (8)
H2 SO4 and 30 mL of N/3 HNO3 are mixed together and volume made to one litre. The normality of the resulting solution is a. N/5 b. N/10 c. N/20 d. N/40 e. N/ 25 Ans. d (6)
0.2 N – NaOH solution. a. 0.45 g b. 0.90 g c. 1.08 g d. 1. 26 g Ans. d (38)
a. 4.0N H2 SO4 b. 0.5 N H2 SO4 c. 1 N H2 SO4 d. 2N H2 SO4 Ans. a (13)
20° C and NaCl concentration is 3.5% the normality of the sea water is a. 0.65 N b. 0.68 N c. 0.66 N d. 0.61 N Answer : d (4)