MCQs: Two major requirements for preparation of ammonia are
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MCQs: The melting point of ice is
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MCQs: When heat is provided to particles of solids, they gain
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MCQs: 'Ethene' is composed of
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MCQs: To make flexible items a substance is added to PVC. This substance is known as
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MCQs: The symbol of 'sulphur' is
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MCQs: Natural substances made up of long molecules are
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MCQs: The density of gases is
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MCQs: The shape of liquid depends on the
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MCQs: The fixed position of particles in solids is due to
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MCQs: Number of atoms in one molecule of ethene is
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MCQs: Photosynthesis is an example of
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MCQs: Respiration is a
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MCQs: To make PVC, molecules of vinyl chloride are
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MCQs: When particles cool down, energy changes
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MCQs: The color of magnesium oxide is
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MCQs: Ammonia fertilizers are made by two components, they are
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MCQs: During chemical reaction, energy is
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MCQs: Particles are packed closely and tightly in
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MCQs: Wood is a
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