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8th CBSE
IMPORTANT
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Silver, gold, and platinum are called noble metals because:
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Important Questions on Classification of Matter
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8th CBSE
IMPORTANT
Which of the following statements is true regarding solids?
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8th CBSE
IMPORTANT
In which of the following substances, intermolecular force of attraction is the maximum?
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8th CBSE
IMPORTANT
Which of the following has maximum compressibility?
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8th CBSE
IMPORTANT
On heating, the temperature of the melting of solid
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8th CBSE
IMPORTANT
Which of the following changes solid to gas on heating?
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8th CBSE
IMPORTANT
The process of phase transition from solid to liquid involves the following steps. Arrange them in a proper sequence.
1. Molecules become free to move, and thus molecular arrangement of liquid.
2. The energy supplied makes the molecules vibrate more.
3. During melting the molecules overcome forces of attraction between them.
4. The molecules acquire rotatory motion, translatory motion, in addition to vibratory motion.
EASY
8th CBSE
IMPORTANT
Under the normal conditions of temperature and pressure, the non-metal bromine exists in _____ state.
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8th CBSE
IMPORTANT
Which of the following is not polyatomic?
