1. [D] decomposition of calcium carbonate to form quick lime and carbon dioxide

    [D] decomposition of calcium carbonate to form quick lime and carbon dioxide

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  2. [B] Lead Acetate Lead Nitrate it is also a soluble salt in water. It an be used in the place of Lead Acetate. Pb(CH₃COO)₂ + 2Kl → Pbl₂ + 2CH₃COO⁻ K⁺ Hence, your answer will be option [B].

    [B] Lead Acetate
    Lead Nitrate it is also a soluble salt in water. It an be used in the place of Lead Acetate.
    Pb(CH₃COO)₂ + 2Kl → Pbl₂ + 2CH₃COO⁻ K⁺
    Hence, your answer will be option [B].

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  3. [B] atmospheric O2 Terrestrial organisms use atmospheric oxygen in order to respire. Hence, your answer will be answer [B].

    [B] atmospheric O2
    Terrestrial organisms use atmospheric oxygen in order to respire. Hence, your answer will be answer [B].

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  4. (B) Solute In tea, sugar is called solute which dissolve in milk and water.

    (B) Solute
    In tea, sugar is called solute which dissolve in milk and water.

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