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Read the given passage and fill in the b...

Read the given passage and fill in the blanks by selecting an appropriate option. Bleaching powder is a `ul(" (i) ")` powder. When exposed to air, it reacts with `ul(" (ii) ")` of the air to liberate `Cl_(2)` gas. It is `ul(" (iii) ")` in cold water and milkiness of the solution is due to presence of unreacted `ul(" (iv) ")`. It reacts with `HCl` and `H_(2)SO_(4)` liberating `ul(" (v) ")` gas.

A

A

B

B

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C

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D

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The correct Answer is:
B
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Read the given passage carefully and fill in the blanks by selecting an appropriate option. Oxides of ul(" (i) ") are reduced to their respective metals by heating with coke and the process is called ul(" (ii) ") . Before carrying out reduction with carbon, if the calcined or roasted ore still contains infusible impurities of earthy matter, called ul(" (iii) ") , an additional substance, called ul(" (iv) ") is added which combines with (iii) to form a fusible material, called ul(" (v) ") .

Read the given passage and fill in the blanks by choosing an appropriate option. When a mixture of two ul(" (i) ") liquids having a difference of 25^(@)C in their boiling points is to be separated, a ul(" (ii) ") is used which increases the ul(" (iii) ") surface area. As a result, when the vapours of both the liquids rise, the ul(" (iv) ") volatile liquid will condense while the vapours of ul(" (v) ") volatile liquid will rise.

Fill in the blanks by choosing an appropriate option. In a ul(" (i) ") wave the particles of the medium oscillate in a direction ul(" (ii) ") to the direction of propagation. Thus, during their oscillations, the particles may move upwards or downwards from the plane passing through their mean positions. The point of maximum positive displacement on a transverse wave is called ul(" (iii) ") and the point of maximum negative displacement is called ul(" (iv) ") . The wave produced in a stretched string when plucked are ul(" (v) ") waves.

Fill up the blanks in the following paragraph by selecting the correct option. Inbreeding increase ul(i) . This inbreeding is necessary if we want to evolve a ul(ii) in any animal. Inbreeding exposes harmful ul(iii) genes that are eliminated by selection.