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Chemistry Test ...

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  • Question 1
    1 / -0.25

    The monomers used in the preparation of dextron are

  • Question 2
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    In which oxidation state, group 15 elements act as Lewis base?

  • Question 3
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    Which of the following elements does not react with hot concentrated sulphuric acid?

  • Question 4
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    The tonic charges of m anganate and permanganate ion are respectively

  • Question 5
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    The enzyme which converts maltose to glucose is

  • Question 6
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    What is the atomicity of aluminium phosphate?

  • Question 7
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    Standard hydrogen electrode (SHE) is a

  • Question 8
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    Which of the following sets of solutions of urea (mol, mass 60 g mol-1) and sucrose (mol. mass 342 g mol-1) is isotonic?

  • Question 9
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    Which of the following is a natural polymer?

  • Question 10
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    When a mixture of manganese dioxide, potassium hydroxide and potassium chlorate is fused, the product obtained is

  • Question 11
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    Relationship between van't Hoff's factor (i) and degree of dissociation (α) is

  • Question 12
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    In the reaction iodide ton acts as

  • Question 13
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    How many gram of sodium (atomic mass 23 u) is required to prepare one mole of ethane from methyl chloride by Wurtz reaction?

  • Question 14
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    If C(s) + O2(g) → CO2(g), ΔH = -X,

    CO(g) + (1/2)O2 (g) → CO2 (g), ΔH = -Y,

    Calculate Δr H for CO(g) formation

  • Question 15
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    Which among the following compounds is obtained when ethane nitrile is acid  hydrolysed?

  • Question 16
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    9 gram anhydrous oxalic acid (mol. wt. = 90) was dissolved in 9.9 moles of water. If vapour pressure of pure wafer is pº1the vapour pressure of solution is

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