MEDIUM
Earn 100

Name a colourless gas having burning sulphur smell which turns lime water milky.

Important Questions on Material : Metals and Non-Metals

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Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

MEDIUM
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be-
HARD
Differentiate between metals and non-metals on the basis of their chemical properties.
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An element forms an oxide which is acidic in nature. Is the element a metal or a non-metal?
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How do metals react with dilute acids? Explain with the help of an example.
EASY
Name the gas produced when chlorine is dissolved in water and exposed to sunlight.
MEDIUM
Can you store the lemon pickle in an aluminium utensil? Explain.
HARD
Compare the chemical properties of metals and non-metals in tabular form.
MEDIUM
What type of oxides are formed when non-metals combine with oxygen?
MEDIUM
Can you store lemon pickle in an aluminium utensil? Explain.
MEDIUM
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
MEDIUM
Consider the following elements:
Sodium, Sulphur, Carbon, Magnesium. Which of these elements will form acidic oxides?
MEDIUM
Why should the foodstuffs like orange juice, pickles, chutney and curd not be kept in iron or aluminium containers?
MEDIUM

When sulphur burns in air, it combines with the oxygen of air to form sulphur dioxide gas. Is it acidic in nature?