Answer / guest

(1) As a result if chemical reaction, the catalyst does not
undergo any change in its mass or composition.

(2) To accelerate the reaction, very small amount of
catalyst is only needed

(3) It does not alter the position of equilibrium in a
reversible reaction

(4) A catalyst can alter only speed of the reaction, but it
cannot start a reaction

(5) Catalytic action is specific

(6) In some cases efficiency of catalyst is enhanced by
presence of some other substance known as promoter or activator

(7) Sometimes catalysts lose their efficiency in the
presence of substance known as catalytic poisons

Application of Catalyst:

1.In manufacture of sulphuric acid.

2.In synthesis of Ammonia

3.In manufacture if Nirtic acid

4.Hydrogenation of oils.

1.Some important catalysts are finely divided Nicket which
is used in hydrogenation of oils

2.Finety divided iron in wed in Haber?s process for
manufacture Ammonia

3.Water vapour acts as a general catalyst in gaseous reactions

4.Dilute acids catalyse the inversion of cane sugar.

5.Presence of alkalies accelerates the decomposition of
hydrogen peroxide

what is the valence of nitrogen?

10 Answers   GACL, TCS,

---

Give the others form of iron ore.

0 Answers  

---

What will happen when a big piece of quick lime is dropped in water ?

2 Answers  

---

Difference between heavy hydrogen , Atom Hydrogen and Hydrogen Ion ?

2 Answers  

---

What do you mean by UV cut off limit

1 Answers   Cipla,

---

What is the difference between hard and soft water ?

2 Answers  

---

what is acidity of a base?

2 Answers  

---

Explain the Boyle?s law ?

2 Answers  

---

Explain about Atomic Weight ?

4 Answers  

---

What is meant by amalgam ?

2 Answers  

---

What causes smoke to curl up into the air ?

1 Answers  

---

What is the role of stannous chloride?

0 Answers  

---