monachatterjee
| Subject: 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 Active member
| Subject: 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 Active member
| Subject: 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 Active member
| Subject: 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. |
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| Subject: Re: chemistry questions | |
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