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Reeta puts two different objects in each of the following containers.
Container (i) : Copper coin and iron nail
Container (ii) : Steel nail and silver earring
Container (iii) : Marble and gold coin
Container (iv) : Nickel coin and steel nail
She can use a magnet to separate the objects in containers __________ .
(Note : Steel is easily attracted by magnet.)

A(i) and (ii)
B(i), (ii) and (iii)
C(i), (ii) and (iv)
D(i), (ii), (iii) and (iv)

Refer to the given food web and select the INCORRECT statement regarding it.


A ‘c’, ‘d’ and ‘e’ are primary consumers.
B ‘b’, ‘f’ and ‘g’ are carnivores.
C If we remove ‘f’ from food web then population of ‘b’ and ‘d’ will increase.
D ‘b’ is an omnivore.

Which pair shows correct match of organism with its breathing organs?

ADolphin-Blow holes
BSnake-Moist skin
CEarthworm-Spiracles
DWhale-Gills

Identify planet X in the given sequence and select the correct option regarding it.


AIt is the fourth planet from the Sun.
BIt is also called the red planet.
CIt is an inner planet of Solar System.
DAll of these

Refer to the given list of some diseases.

Which of the given diseases are caused by virus?

A(i), (ii), (iii), (iv) and (v) only
B(i), (iii), (iv), (vi) and (viii) only
C(i), (ii), (iv) and (viii) only
D(i), (ii), (viii), (ix) and (x) only

Sarita wanted to choose a material to make an umbrella. She performed an experiment to find out which material P, Q, R or S is best suited to make an umbrella. She poured 100 mL of water over each of the materials as shown in the diagram. She measured the amount of water collected in the container after 1 minute. Which material is best suited to make an umbrella?


AMaterial-P Amount of water in container-60 mL
BMaterial-Q Amount of water in container-90 mL
CMaterial-R Amount of water in container-0 mL
DMaterial-S Amount of water in container-15 mL

Which of the following options will complete the given figure matrix?



A
B
C
D

The given diagram represents a fractionating column where petroleum is separated into various fractions. Arrange the fractions X, Y, Z in order of decreasing boiling point range and identify the fraction that condenses first.



AZ > Y > X; X
BZ > Y > X; Z
CX > Y > Z; Y
DY > Z > X; Z

Find the missing number in the given number pattern.
3, 9, 27, 81, __?__

A213
B243
C198
D256