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The compound which is used to produce di...

The compound which is used to produce dioxygen and to remove carbon dioxide in submarines is

A

`KO_2`

B

`Na_2O`

C

`Li_2O`

D

`CaO`

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Knowledge Check

  • carbon in carbon dioxide is

    A
    `sp` hybridization
    B
    `sp^(2)` hybridization
    C
    `sp^(3)` hybridization
    D
    `d^(2)sp^(3)` hybridised.

  • Among the following compounds, which will react with carbonates and bicarbonates to evolve carbon dioxide gas?

    A
    B
    C
    D

  • When 1.0 mol of compound Q is burnt in excess oxygen, 2.0 mol of carbon dioxide and 2.0 mol of steam are produced. Which of the following is the structural formula of compound Q?

    A
    `H-underset(H)underset(|)overset(H)overset(|)C-underset(H)underset(|)overset(H)overset(|)C-H`
    B
    `H-underset(H)underset(|)overset(H)overset(|)C-overset(H)overset(|)C=O`
    C
    `H-underset(H)underset(|)overset(H)overset(|)C-underset(H)underset(|)overset(H)overset(|)C-O-H`
    D
    `H-underset(H)underset(|)overset(H)overset(|)C-underset(H)underset(|)overset(H)overset(|)C-underset(H)underset(|)overset(H)overset(|)C-O-H`
    • AAKASH INSTITUTE-TEST 6-EXAMPLE
    1. The compound which is used to produce dioxygen and to remove carbon di...

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    2. The colour shown by potassium metal in the oxidizing flame of Bunsen b...

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    3. The metal which will form most stable superoxide is

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    4. Which among the following has highest hydration enthalpy?

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    5. The species which is absent in the aqueous solution of CO2 is

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    6. The alkali metal reacts with dihydrogen at highest temperature is

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    7. In the reaction (K2Cr2O7 + 14HCl to 2CrCl3 + 2KCl + 3Cl2 + 7H2O) HCl b...

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    8. The correct order of catenation tendency of 14^(th) group elements

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    9. The number of three-center-two-electron bond (s) present in diborane m...

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    10. Phenomenon of dissoluion of lead in ordinary water containing dissolve...

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    11. Which of the following is not hydrolysed?

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    12. Select the correct statement regarding the solution of liquid ammonia...

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    13. Among the following, least soluble compound in water is

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    14. Select the correct statement regarding isotopes of hydrogen.

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    15. Which of the following is not a redox reaction?

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    16. In which of the following compounds, oxygen exhibits highest oxidation...

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    17. Producer gas is a mixture of

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    18. Which is not ture for graphite?

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    19. Crosslink silicone polymers can be obtained by the condensation of

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    20. Role of SO2in the following reaction respectively are, (a)Fe2(SO4)3 +...

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