Question

1. The property of metal used for making temple bells is
(a) ductility
(b) malleability
(c) sonority
(d) hardness
2. Rust is formed when iron combines with
(a) nitrogen
(b) hydrogen
(c) moist air
(d) ozone
3. The property by which a substance can be drawn into thin sheets is called
(a) ductility
(b) hardness
(c) malleability
(d) sonority
4. The oxides of non-metals are generally
in nature.
(a) acidic
(b) basic
(c) neutral
(d) none of these​

Answer 1

1. Sonority
2. Oxygen
3. Ductility
4. Acidic

Explanation :-

1. The property by virtue of which metals make a ringing sound is called sonority. Metal sheets are used for making bicycle bells and temple bells.
2. Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.
3. The property by the virtue of which they can be beaten into thin sheets is called malleability and the property by the virtue of which they can be drawn into wires is called ductility.
4. Oxides of non-metals are generally of acidic nature. For example, when sulphur burns in air it reacts with oxygen of air to form an acidic oxide called sulphur dioxide.

Answer 2

Answer:

sonorous

water and hydrogen

malleability

acidic in nature

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