If the given clock is 42 minutes fast, then the correct time after half an hour is __________.
A1 : 05
B11 : 23
C12 : 23
D1 : 23
Match column I with column II and choose the correct option from the codes given below.
|Column I||Column II|
|P. Hot tea poured in saucer gets cooled faster.||(i) Evaporation increases with increase in temperature.|
|Q. We feel more cold after a hot water bath than a cold water bath.||(ii) Evaporation increases with decrease in humidity.|
|R. Water is cool in earthen pitcher during dry hot day.||(iii) Evaporation increases with increase in wind speed.|
|S. We feel comfortable under a moving fan in summer.||(iv) Evaporation increases with increase in surface area.|
A P - (ii), Q - (i), R - (iii), S - (iv)
B P - (iii), Q - (iv), R - (ii), S - (i)
C P - (iv), Q - (i), R - (ii), S - (iii)
D P - (iv), Q - (ii), R - (iii), S - (i)
given answer is wrong.
Study the given flow chart and choose the correct statements.
Sulphur + Coal powder + Common salt
(i) The property used to separate the mixture is solubility of different components in different solvents.
(ii) Sulphur is soluble in carbon disulphide, salt in water and coal is insoluble in both.
(iii) X is water and Y is carbon disulphide.
A (i) and (ii) only
B (ii) and (iii) only
C (i) and (iii) only
D All are correct.
its only 2 and 31 refers to chromatography