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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 9
41.
Presence of sodium tripolyphosphate (an additive) in synthetic detergent
facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions).
inhibits its corrosive effects.
does not allow redeposition of dirt on the cleaned surface.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Dense soda ash used in the manufacture of glass, is chemically represented by
Na2CO3
Na2CO3.10H2O
Na2CO3.H2O
Na2HCO3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Reverse osmosis is normally used for the
separation of isotopes of uranium from gaseous uranium hexaflouride.
separation of helium from natural gas.
desalination of brackish water to produce potable (drinking) water.
purification of oxygen.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Hydrazine is largely used
as a starting material for 'hypo'.
in photographic industry.
as rocket fuel.
in printing industry.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
N2 & H2
CO2 & H2
CO & H2
C & H2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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