EASY
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Which is a liquid metal?

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Important Questions on Nature of Matter : Elements, Compounds, and Mixtures

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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances

Consider the elements of group-14. Choose the correct alternative:

a) Si and Ge are semiconductors

b) Carbon and silicon are non-metals

c) Sn and Pb are metals

d) Si and Ge are metalloids

EASY
Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Example of an element among the following is
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Who gave the definition of an element?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
The substances made up of only one type of atoms are called _____.
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
______ is a substance composed of two or more elements, chemically combined with one another in a fixed proportion.
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following is a compound ?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Brass contains _____.
EASY
Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
_____ is a metal which is liquid at room temperature. (Bromine/ Mercury)
MEDIUM
Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances

Which of the following is NOT a pure substance ?

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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following can be classified as a pure substance ?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following is not a metal?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances

______ is a basic form of matter that cannot be broken down into simpler substances by chemical reactions.

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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following statements is not correct -
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following is a property of non-metal?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following can be classified as a pure substance?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following is liquid metal.
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following is a metalloid?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
The element which has an intermediate property between a metal and non-metal is known as?
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Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following is not a compound?
MEDIUM
Science>Chemistry>Nature of Matter : Elements, Compounds, and Mixtures>Pure Substances
Which of the following is not a compound