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Identify the incorrect statements regarding reaction of calcium oxide with water.

(i) It is an endothermic reaction.
(ii) Slaked lime is produced.
(iii) Quick lime is produced.
(iv) It is a combination reaction.

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

An object was placed upright at a distance of 25 cm in front of a converging lens of focal length 20 cm. A concave mirror with a focal length of 15 cm was placed 120 cm behind the lens. Which one of the following describes the nature of the final image?

AReal, Enlarged
BVirtual, Upright
CVirtual, Inverted
DInverted, Diminished

B₁, B₂ and B₃ are the three identical bulbs connected to a battery of steady emf with key K is closed as shown in the given figure. What will happen to the brightness of the bulbs B₁ and B₂ when the key is opened?


ABrightness of the bulb B₁ increases and that of B₂ decreases.
BBrightness of the bulbs B₁ and B₂ increases.
CBrightness of the bulbs B₁ decreases and that of B₂ increases.
DBrightness of the bulbs B₁ and B₂ decreases.

In the circuit shown in the given figure E, F, G, H are cells of emf 2, 1, 3 and 1 volt respectively, and their internal resistances are 2, 1, 3 and 1 ohm respectively. Select the correct statement from the given options.


AThe current in arm XW is A.
BThe potential difference across terminals of G is V.
CThe potential difference across terminals of H is V.
DThe current in arm UX is A.

Two thin long wires carry currents I₁ and I₂ along x-axis and y-axis, respectively, as shown in the given figure. Which one of the following statements is correct?


AMagnetic field is zero at least at one point in each quadrant.
BMagnetic field can be zero somewhere in the first quadrant.
CMagnetic field can be zero somewhere in the second quadrant.
DMagnetic field is non-zero at all points in the third quadrant.

The refraction through the prisms are as shown in the given figures.

Select the incorrect statement from the following. Path of the light ray in

A
B
C
D

The given figure shows primary and secondary rainbows.
Which one of the following options correctly lists the colours of marked rays?

Read the given passage and answer the following questions.

Which of the following statements is/are correct?
I. Substance T and ethane belong to same homologous series.
II. Substances P and Q undergo addition reactions.
III. Substances P and R both react with sodium metal to liberate H₂ gas.
IV. Substance P reacts with sodium bicarbonate to give a brisk effervescence of CO₂.

A III only
B II and IV only
C I and III only
D III and IV only

If 200 MeV energy is released per fission of U²³⁵ nuclei then, the mass of U²³⁵ consumed per day in a reactor of power 1 MW assuming its efficiency is 80% will be (Mass of one uranium atom is 3.925 × 10^-25 kg)

A1.324 g
B3.246 g
C2.606 g
D0.543 g

Refer to the given flow chart and select the correct statement regarding W, X, Y and Z.


AW could be syphilis whereas Z could be chicken pox.
BW could be AIDS whereas Y could be dengue.
CY could be kala azar whereas Z could be sleeping sickness.
DX could be gonorrhoea whereas Y could be diabetes.