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Chemical Reacti...

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  • Question 1
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    Anhydrous iron (III) chloride is prepared by:

  • Question 2
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    In the reaction given below, hydrogen is getting:

    $$ CuO + H_2 \rightarrow Cu + H_2O $$

  • Question 3
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    The color of the coating formed on the metals such as iron, silver, and copper after corrosion will be:

  • Question 4
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    Which of the following are combination reactions?
    (i) $$2 \mathrm{KClO}_{3} + {\mathrm{Heat}}{\longrightarrow} 2 \mathrm{KCl}+3 \mathrm{O}_{2}$$
    (ii) $$M g O+H_{2} O \longrightarrow M g(O H)_{2}$$
    (iii) $$4 A 1+3 O_{2} \longrightarrow 2 A 1_{2} O_{3}$$
    (iv) $$Z n+F e S O_{4} \longrightarrow Z n S O_{4}+F e$$

  • Question 5
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    Reduction reaction is the exact opposite of

  • Question 6
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    In a combination how many products are formed?

  • Question 7
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    Which information is not conveyed by a balanced chemical equation?

  • Question 8
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    Fatty food become rancid due to the process of 

  • Question 9
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    If hydrogen is added to a compound (or an element ) in a chemical reaction, the reaction is known by which reaction?

  • Question 10
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    Calcium oxide reacts vigorously with water to produce slaked lime.

    $$CaO(s) + H_2O(l) \to Ca(OH)_2(aq)+ Heat$$

    This reaction can be classified which of the following?
    (A) Combination reaction
    (B) Exothermic reaction
    (C) Endothermic reaction
    (D) Decomposition reaction

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