When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be

Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?

A

Exact concentration of solution is not given

B

Character of semi permeable membrane is not given

C

The flow of solution is not possible through semi permeable membrane

D

All are incorrect

100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?

A

70 kg

B

36 kg

C

44 kg

D

56 kg

Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?

A

6.09%

B

10%

C

10.75%

D

21.5%

Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?

A

600

B

800

C

300

D

250

E

None of these

Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the

A

Same elevation in boiling point

B

Different elevation in boiling point

C

Elevation in boiling point in the ratio of their molecular weights

D

None of these

In triangle PQR length of the side QR is less than twice the length of the side PQ by 2 cm. Length of the side PR exceeds the length of the side PQ by 10 cm. The perimeter is 40 cm. the length of the smallest side of the triangle PQR is:

A

6 cm

B

8 cm

C

9 cm

D

10 cm

Solution X contains 40% salt and 60% water by weights, Solution Y contains 25% salt and 75% water. If a mixture of X and Y contains 30% salt. What percent of the weight of this mixture is solution X?

A

10%

B

33.3%

C

40%

D

42.5%

A 30% solution is mixed with 10 grams of water to from a 20% solution. How many grams of the original solution did we start with ?

A

10

B

15

C

20

D

25

When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time?

A

1/8

B

1/4

C

1/3

D

3/8

If T and U sit immediately on either side of X, the executive sitting directly opposite X must be either __

A

W OR V

B

W OR Z

C

Y OR V

D

Y OR Z

When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be

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