Related Questions

Enzymes are organic catalysts used in the __________ reactions.
A Chemical
B Biochemical
C Photochemical
D Electrochemical
The sides of two cubes differ by 2 cm and their volumes differ by 152 cm3 .What is the length of the side of the smaller one?
A 8 cm
B 4 cm
C 6 cm
S1: It is said that deep down people are alike. S6: people differ in intelligence , personality, emotional display , values, priorities and the like. P: However in the broadest sense we can say people are all alike. Q: This statement is essentially false. R: But the individual differences are far more illumination. S: For instance, it's true that all people have attitudes, likes and dislikes, feelings and similar attributes. The proper sequence should be__
A QRSP
B SPQR
C QPSR
D PRQS
The sense of delayed gratification of working now for late pleasure has helped shape the economic behaviour of our society. However, that sense is no longer nurtured as consistently in our children as it once was. Foe example , it used to be a bit of patience to put together the toys come in whole. which of the following is an assumption made by the argument?
A The toys in the cereal boxes have changed partly because the economic conditions of our society have improved
B The influence of promotion of gimmicks has on the economic behaviour of our society over time
C The toys that used to come in cereal boxes were put together by the same children who played with them .
D Part of the pleasure of any toy lies in putting the toy together before playing with its
A catalyst is said to be a negative catalyst, ifit
A Retards the rate of reaction
B Reduces the value of equilibrium constant
C Does not initiate the reaction
D All of the above
For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
A (i) platinum (ii) sulphur
B (i) palladium (ii) oxygen
C (i) nickel (ii) sulphur
D (i) nickel (ii) oxygen
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)
A Tan hT/T
B Tan T/T
C Tan hT/tan T
D None of these
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in
A Blood
B Saliva
C Intestine
D Gland
Inorganic fertilizer means-
A chemical fertilizer
B compost fertilizer
C bio-fertilizer
D natural fertilizers
Dietary inorganic iron absorption is increased by
A Vitamin C
B Fructose
C Alcohol
D Calcium
E Hepcidin

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