Chemical Engineering - Chemical Engineering Basics

6.
Number of electrons in the outermost orbit of a semi-conductor is
2
4
6
8
Answer: Option
Explanation:
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7.
The condition of diffraction from a crystal is given by
nλ = 2d Sin θ
λ = d Sin 2θ
λ = 2d Sin 2θ
nλ = d Sin θ
Answer: Option
Explanation:
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8.
Galena is an ore of
iron
copper
lead
aluminium
Answer: Option
Explanation:
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9.
A reduction process is accompanied with increase in the
number of electrons.
oxidation number.
both (a) & (b).
neither (a) nor (b).
Answer: Option
Explanation:
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10.
Draught produced by a tall chimney due to density difference between hot flue gas inside the Chimney and atmospheric air outside the chimney is more appropriately known as the __________ draught.
natural
induced
forced
chimney
Answer: Option
Explanation:
No answer description is available. Let's discuss.