Washing soda is
sodium hydroxide
sodium carbonate
sodium bicarbonate
potassium chloride
Correct Answer :
B. sodium carbonate
Related Questions
The form of carbon used in decolourising sugar solution is
wood charcoal
animal charcoal
coconut charcoal
lamp black
A burning substance which continues to burn in a jar of carbon dioxide is
zinc
red phosphorus
magnesium
sulphur
Argyrol used as eye ointment is a solution of
hydrogen peroxide
silver nitrate
tincture iodine
m-cresol
Which of the following metals is the best conductor of heat and electricity?
Aluminium
Silver
Copper
Magnesium
Real gases tend to become ideal Under
low pressure and high temperature
low pressure and low temperature
high pressure and low temperature
high pressure and high temperature
The chemical name of aspirin is
acetamide phenol
malonyl urea
aminosalicylic acid
acetyl salicylic acid
A light alloy having high tensile strength is
German silver
solder
magnalium
bell metal
Gold dissolves in aqua regia due to the formation of
chloro auric acid
auric chloride
gold nitrate
aurous chloride
Galvanising is coating Iron with
nickel
zinc
chromium
copper
The vitamin that is found in citrus fruits such as lemon and orange is
vitamin C
vitamin B2
vitamin A
vitamin E
Triple Antigen treatment for children is to ward off
whooping cough
tetanus
diphtheria
All the three
Compounds containing only carbon and hydrogen are called
carbohydrates
carbides
hydrocarbons
carbonyls
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
Rusting is
an oxidation process
a reduction process
a physical change
an electro-chemical process
A drug that is usually administered for malaria is
sulphanilamide
quinine
methicillin
novocaine
One method by which the components of air can be separated is
shaking with caustic soda solution
shaking with water
fractional distillation of liquid air
passing air over heated magnesium
Grape sugar is another name for
glucose
fructose
sucrose
maltose
A form of carbon which is a good lubricant is
diamond
coke
graphite
charcoal
Chloroform used as anaesthetic should be preserved In the dark in tightly stoppered bottles because otherwise
it becomes coloured
it gets evaporated in air
it gets oxidised to phosgene
it gets decomposed to chloropicrin
Lead soaps are used in
shaving creams
adhesive tapes
toilet powders
lubricants
A compound used both as a fungicide and as a disinfectant is
chlorine
carbon monoxide
sulphur dioxide
o-cresol
Stainless steel contains steel and
manganese
vanadium
nickel
chromium
Brine is a solution of
sodium chloride in water
iodine in alcohol
sulphur in carbon disulphide
Potassium iodide in water
Oil of winter green contains
acetone
ether
acetic acid
methyl salicylate
Fructose is also called
dextrose
fruit sugar
beet sugar
blood sugar
Which of the following is used as a food preservative?
phenol
washing soda
absolute alcohol
vinegar
Which of the following is not a food material?
silicate
protein
fat
carbohydrate
A substance used as a fire-extinguisher under the trade name of Pyrene is
carbon dioxide
chloroform
carbon tetrachloride
bleaching powder
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methane
nitrogen
carbondioxide
ethylene
Concrete is a mixture of
cement an limestone
cement and sand
cement and gravel
cement, sand and gravel