Which one of the following gases is extremely soluble in water?
Carbon dioxide
Ammonia
Chlorine
Hydrogen sulphide
Correct Answer :
B. Ammonia
Related Questions
One of the ingredients of the paste on the side of a match box is
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
Rooms in places infected by plague are disinfected using
bleaching powder
iodoform
sulphur dioxide
chlorine
Nitrous oxide used as anaesthetic is usually mixed with
ethyl alcohol
chloroform
oxygen
methyl alcohol
Hard water does not lather well with soap because
it contains carbonates of calcium and magnesium
it contains sodium chloride
it is highly coloured
it contains suspended impurities
A non-material kind of pollution is
land pollution
air pollution
noise pollution
water pollution
Coke is a substance obtained
from coal mines
when wood is burnt in excess of air
by heating coal out of contact with air
by heating wood out to contact with air
Concrete is a mixture of
cement an limestone
cement and sand
cement and gravel
cement, sand and gravel
Consider the following statements: Hard water is not suitable for
1) drinking
2) washing clothes with soap
3) use in boilers
4) irrigating crops
Which of these statements are correct?
1 and 3
2 and 3
1, 2 and 4
1, 2, 3 and 4
Which of the following is not a metal?
Lithium
Helium
Sodium
Cobalt
Physico-chemical characteristics of water in water sources undergo changes due to
aquatic macrophytes
aquatic fungi
effluents
evapotranspiration
Which of the following is not a chemical change?
Burning of magnesium ribbon in air
Distillation of water
Heating of cane sugar
Setting of cement
Which of the following elements is not required for the healthy growth of plants?
Nitrogen
Phosphorus
Potassium
Mercury
A mixture of carbon monoxide and hydrogen is
coal gas
producer gas
water gas
gobar gas
Vinegar is an aqueous solution of
oxalic acid
citric acid
acetic acid
hydrochloric acid
The alloy added in the preparation of steel contains
Fe and C
Mn and C
Fe and Mn
Fe, Mn and C
Which of the following is not a characteristic of potable water?
It must be free from suspended impurities
It must be free from harmful bacteria
It must contain traces of sodium bicarbonate
It must have a fishy odour
The purest form of carbon is
animal charcoal
coal
wood charcoal
sugar charcoal
Alum is used
as an analgesic
in the purification of water
as a fertilizer
as a disinfectant
Artificial diamonds were produced by
Moissan
Davy
Faraday
Marie Curie
Penicillin was discovered by
Alexander Fleming
Sir JJ Thomson
Dr Nessler
Sir John Russel
The substance most abundantly found in sea water is
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
The compound or nitrogen used in dry cells is
ammonia
ammonium nitrate
ammonium chloride
ammonium nitrite
Hypo' is
sodium nitrate
Potassium nitrate
sodium thiosulphate
ammonium chloride
The most abundant noble gas present in air is
neon
argon
helium
krypton
Tincture iodine is
a disinfectant
an analgesic
a hypnotic
a dye
A non-metal which is a good conductor of electricity is
graphite
phosphorus
sulphur
iodine
The neutron was discovered by
Chadwick
Madam Curie
Becquerel
Aston
The compound used in photography is
ammonium dichromate
copper Sulphate
magnesium Sulphate
sodium thiosulphate
Washing soda is
sodium hydroxide
sodium carbonate
sodium bicarbonate
potassium chloride
The process of heating steel to bright red heat and cooling suddenly by plunging it into water is known as
annealing
hardening
quenching
tempering