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प्रश्न
Complete the statement given below, by filling in the blank with the correct word:
A non-metal added to swimming pools to kill germs_____.
उत्तर
A non-metal added to swimming pools to kill germs chlorine.
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संबंधित प्रश्न
Give reasons for the following.
Aluminium foils are used to wrap food items.
Name the gas that is produced in the given case:
The reaction of ethanol and sodium.
Name one metal which has a low melting point.
Name two physical properties of carbon in which it's behaviour is not as expected from it's classification as non-metal.
What are metals? Name five metals.
Which of the following alloys contains a non-metal as one of the constituents?
(a) brass
(b) amalgam
(c) steel
(d) bronze
State any five physical properties of a non-metal.
State two important uses of following non-metal
Uses of graphite
Name:
a metal with dull appearance
Distinguish between metals and non metals on the basis of:
(i) ion formation, (ii) discharge of ions, (iii) nature of oxide formed, (iv) oxidizing and reducing property, (v) reaction with acids.
`M+ HCl → MCl_2 +—`
Name two metals which react with cold water.
Explain how the activity series accounts for each of the following:
reaction with acids
Explain the following:
Metals like calcium and magnesium are never found in their free state in nature.
Write the name.
Nonmetal which is a good conductors of electricity.
A form of non-metal which has high ductility is
Name six common non-metals and write their symbols.
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
Which of the following non-metals is a liquid?
Non-metals are non-malleable.
