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Hydrogen Test -...

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  • Question 1
    1 / -0

    Which one of the following metals cannot evolve $$H_{2}$$ from acids or $$H_{2}O$$ or from its compounds? 

  • Question 2
    1 / -0

    Enthalpy of vapourisation for water is $$186.5kJ$$ $${mol}^{-1}$$. The entropy change during vapourisation is _____ $$kJ{K}^{-1}{mol}^{-1}$$

  • Question 3
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    Which is correct order of BP of VA , VIA and VIIA hydrides: 

  • Question 4
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    Industrially $$H_2O_2$$ is produced

  • Question 5
    1 / -0

    Ionic hydride among following is 

  • Question 6
    1 / -0

    Match the following 

    Sr.NoColumn ISr.NoColumn II
    A.$$10$$ vol of $$H_2O_2$$1.Perhydrol
    B.$$20$$ vol of $$H_2O_2$$2.$$5.358 N$$
    C.$$30$$ vol of $$H_2O_2$$3.$$1.785N$$
    D.$$100$$ vol of $$H_2O_2$$4.$$3.57N$$

  • Question 7
    1 / -0

    Which of the following will undergo hydride shift?

  • Question 8
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    Which of the following statement is false about $$H_2 O_2$$ ?

  • Question 9
    1 / -0

    In  $$O _ { 2 }$$  and  $$H _ { 2 } O _ { 2 },$$  the  $$O - O$$  bond lengths are  $$1.21$$  and  $$1.48\mathring { A } $$  respectively. In ozone, the average   $$O - O$$  bond length is :

  • Question 10
    1 / -0

    Among $$CaH_2, NH_3, NaH$$ and $$B_2H_6$$, which are covalent hydrides?

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