Nuclear Power Engineering
Uranium is recovered from its ore (pitchblende) by

Leaching with sulphuric acid
Smelting in a furnace
Dissolving in water
Froth floatation technique

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Nuclear Power Engineering
A homogeneous reactor is the one, in which the

All of these
The fuel and the moderator is mixed to form a homogeneous material
Same substance (e.g. heavy water) is used as moderator & coolant
Fissile atoms are evenly distributed throughout the mass of nuclear reactor

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