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chemistry questions

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monachatterjee




PostSubject: chemistry questions Wed Feb 11, 2009 12:00 am

Nitrogen and Ammonia


Multiple Choice type.
Choose the best option.
Q.1 Nitrogen was named by whom ?
Antoine lavoisier
Antoine Chaptal
Daniel Rutherford
Antoine Rutherford


Q.2 In the periodic table, Nitrogen is placed in group 5a, it ranks which position ?
First
Second
Third
Fourth

Q.3 Which of the following is a 'Metalloid'?
Phosphorus.
Nitrogen
Antimony
Bismuth

Q.4 The outermost Shell of elements belonging to group 5 possess how many electrons ?

Two
Three
Four
Five

Q.5 Which of the following form hydrides, halides and oxides.?

Nitrogen
Phosphorus
Antimony
All of them.

Q.6 Which is most acidic of all ?

As
Sb
P
Bi

Q.7 Nitrogen is an important part of which bio molecule ?

Carbohydrate
Fats
Minerals
Proteins.

Q.8 from of Nitrogen is Ammonia.

Oxide
Hydride
Sulphide
Halide

Q.9 Which of the following is 'bleaching powder'?

CaCi2
Ca3Cl
CaoCi2
Ca2Ci2

Q.10 Ammonium dichromate has which colour?

Red
Orange
Blue
Green

Q.11 Nitrogen obtained from nitrogenous compound is called

Synthetic Nitrogen
Heavy Nitrogen
Bubbly Nitrogen
Chemical Nitrogen.

Q.12 Nitrogen is

Yellow in colour
Sweet smelling
Green in colour
Odourless

Q.13 Boiling point of liquid N2 is

-210oC
-40oC
83oC
-195.8oC

Q.14 Nitrides are decomposed by 'boiling water' to form corresponding hydroxides and

Ammonia
Methane
Nitric acid
Nitrogen oxides.

Q.15 CaCN2 is an important fertilizer and is commercially known as

Nitride
Carbide
Cyanide
Nitrolim

Q.16 Nitrogen reduce the effect of which element in atmosphere ?

Hydrogen
Oxygen
Helium
Carbon

Q.17 What is the relative Molecular Mass of NH3 ?

16
17
18
19

Q.18 Who proved Ammonia to be a compound consisting of elements Nitrogen and hydrogen ?

Mendeleyev
Lavoisier
Humphry Davy
Fritz Haber

Q.19 Calcium oxide is commonly known as

Quick lime
Fresh lime
Milk of lime
Calcium lime

Q.20 Liquor ammonia fortis is

Hydride of ammonia
Nitrite of ammonia
Saturated Solution of ammonia in water
Carbide from of ammonia.

Q.21 Which element was considered the best catalyst to from ammonia ?

Iron
Antimony
Copper
German Silver

Q.22 Reaction between nitrogen and hydrogen is

Usually rare
Exothermic
Endothermic
Very high

Q.23 Which of the following is an 'promoter' during "Haber's Process" ?

Nitrogen
Molybdenum
Silica
Finely divided iron.

Q.24 Which of the following is commonly known as 'Nessler's Reagent' ?

K2I4
K2CCl4
K2HgI4
K2Ci2Hg2

Q.25 Ammonia affects

Ink glands
Sweat glands
Sebaceous glands
Tea glands.

Q.26 Freezing point of liquid ammonia is

-33.5oC
-44.5oC
-55.6oC
-77.7oC

Q.27 During oxidation of Ammonia , catalyst is

Iron
Platinum
Carbon (coke)
Molybdenum

Q.28 Ammonium hydroxide reacts with sulphuric acid to give water and

(NH4) SO4
NH2 SO4
(NH4)2 SO4
(NH3)2 SO4

Q.29 When Nitrogen reacts with excess chlorine, it from yellow liquid (explosive) , which is

N2Ci2
NCi2
NCl3
N2Cl4

Q.30 Ammonia is used to manufacture sodium carbonate by

Haber's process
Solvay process
Ostwald's process
None of the above
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Namit
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PostSubject: Re: chemistry questions Sat Feb 14, 2009 11:06 pm

itne saare post karne pe reply kaun karega dear?? lol
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siya
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PostSubject: Re: chemistry questions Sat Feb 14, 2009 11:42 pm

yaaaa.......mona....i dont think its possible.....hahahaha heheheheh
well dont worry i was just kidding!!!!!!i will post d answers soon
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ShriyaOberoy
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PostSubject: Re: chemistry questions Wed Jan 13, 2010 7:49 pm

don't you think some of these questions are highly irrelevant? Eg. I don't think the Board paper ever has any Q related to melting and boiling points of any substance as well as who prepared it first. scratch
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