i. The ability of a catalyst to direct the reaciton to yield particular products is called
a. Reactivity b. Selectivity c. Activity d. Fugacity
ii. Which of the following Is an example of zeolite?
a. `ZSM-5` b. `AgNO_(3)` c. `Mg(OH)_(2)` d. `Co(OH)_(3)`
(iii) Reactions in zeolite catalyst depends on
a. Pores b. Apertures
c. Size of cavities d. All of these

Which of the following is an amphoteric hydroxide? (a) Mg(OH)_2 (b) Be(OH)_2 (c) Sr(OH)_2 (d) Ca(OH)_2

Which of the following is a formula of methanides: (a) Be_(2)C (b) CaC_(2) (c) Mg_(2)C_(3) (d) Al_(4)C_(3)

Which of the following solutions can be safely stored in a copper vessel ? (a) ZnSO_(4) (b) AgNO_(3) (c) AuCl_(3) (d)All of them.

Let A={a , b ,{c , d},\ e} . Which of the following statements are false and why? (i) {c , d}subA (ii) {c , d} in A (iii) {{c , d}}subA

Which out of the following is : ( a) the weakest acid (b) the strongest acid ? (i) C_(2)H_(5)OH (ii) CH_(3)COOH (iii) C_(6)H_(5)OH (iv) H_(2)O

Select the principal functional group when the following groups are present in the molecule : (a) -OH, -COOH, -NO_(2) (b) -OCH_(3), OH, -Cl (c) -CHO, -CN, -OH (d) -Cl, -CONH_(2), -CHO

Which of the following small-sized elements can repalce silicon and aluminium in the framework at zeolites a. Boron b. Magnesium c. Phosphorus d. All ii. Zeolites are microporous aluminosilicates with general formula a. M[(AlO_(2))_(x)].mH_(2)O b. M_(x)[AlO_(2))_(x)(SiO_(2))_(y)] c. M_(x)[(SiO_(2))_(y)].mH_(2)O d. M_(x//n)[(AlO_(2))_(x)(SiO_(2))_(y)(SiO_(2))_(y)].mH_(2)O iii. The zeolites have shape selectivity depending on a. Pore structure b. Atomic structure C. Molecular structure d. None

Which of the following statements are correct about solid catalyst? (a)Same reactants may give different products by using different catalysts (b)Catalyst does not change DeltaH of reaction (c)Catalyst is required in large quantities to catalyse reactions (d)Catalytic activity of a solid catalyst does not depend upon the strength of chemisorption