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Rachna took two strong magnets to stroke a steel bar in the directions shown in the figure.

Which one of the following show correctly the poles of the steel bar after the stroking method was applied?

If 'a' denotes '+', 'b' denotes '÷', 'c' denotes '–' and 'd' denotes '×', then find the value of 28b7d8c6a4.


A
B32
C30
D34

Sonali mixed a packet of salt in a small amount of sand and then tried to recover the salt by the usual processes of sedimentation, decantation or filtration followed by evaporation. To her surprise, she could recover only a small part of the salt that she had taken. The possible reasons could be
I. Salt also got evaporated along with water.
II. The quantity of salt was much more than that required to form a saturated solution.
III. The undissolved salt remained mixed with sand.
IV. The quantity of water taken was insufficient to dissolve all the salt.

AII and III only
BI and IV only
CII, III and IV only
DAll of these.

the relationship amongst, "Petals, Bouquet, Flowers" ?

A
B
C
DNone of these

Find the missing number, if a certain rule is followed row-wise or column-wise.



A4
B8
C12
D16

Which phase of Moon is shown by 'X' in the given figure?


AFull
BGibbous
CCrescent
DNew

Match the column I with column II and select the correct option from the codes given :

The necessary requirement for a fuse wire is

AConductor with low melting point
BConductor with high melting point
CWinding the solenoid around a magnetic material
DAll of these.

200 mL of water at 25°C was poured into each of the given containers P–S. The containers were then left in an open garden under the sun.

Which of the following containers will have maximum volume of water after a few hours?

AP
BQ
CR
DS

The given figure shows human digestive system. Which of the labelled parts secretes a yellowish-green substance that converts the fats present in the food to small fat droplets?



AP
BR
CS
DQ