Related Questions

Triple superphosphate is made by reacting phosphate rock with __________ acid.
A Phosphoric
B Nitric
C Sulphuric
D Hydrochloric
Triple superphosphate is chemically represented as
A CaF2.3Ca3(PO4)2
B 3Ca3(PO4)2
C Ca(PO3)2
D Ca(H2PO4)2
If we increase the pressure on a substance (which is at its triple point), then the triple point
A Increases
B Decreases
C Remains unchanged
D May increase or decrease ; depends on the substance
Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats
A P and Q
B P and R
C P and S
D R and S
The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the
A Lewis-Randall rule
B Statement of Vant-Hoff equation
C Le-Chatelier's principle
D None of these
__________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol).
A Unsaturated polyester
B Alkyd resins
C Saturated polyester
D Amino resins
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?
A 3
B 2
C 1
D 0
What is the degree of freedom for two mis-cible (non-reacting) substances in vapor-liquid equilibrium forming an azeotrope?
A 0
B 1
C 2
D 3
Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is
A 2
B 0
C 1
D 3
A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.
A Less than
B Equal to
C More than
D Equal to or more than

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