NEET Chemistry MCQs

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    NEET Questions / Chemistry

    18011.

    Which statement is incorrect?

    A

    A prime number is only divisible by 1 and itself.

    B

    All prime numbers are odd

    C

    If a number is divisible by 2 and 3, it is divisible by 6.

    D

    1 is not a prime number

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    18014.

    Which ion in aqueous medium has orange colour?

    A

    Cr2O72βˆ’{\rm{C}}{{\rm{r}}_2}{\rm{O}}_7^{2 - }

    B

    Cr3+{\rm{C}}{{\rm{r}}^{3 + }}

    C

    MnO4βˆ’{\rm{MnO}}_4^ -

    D

    MnO42βˆ’{\rm{MnO}}_4^{2 - }

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    18015.

    The compound widely used in making reference electrode is:

    A

    ZnCl2{\rm{ZnC}}{{\rm{l}}_2}

    B

    CuSO4{\rm{CuS}}{{\rm{O}}_4}

    C

    Hg2Cl2{\rm{H}}{{\rm{g}}_2}{\rm{C}}{{\rm{l}}_2}

    D

    HgCl2{\rm{HgC}}{{\rm{l}}_2}

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    18016.

    Which statement is incorrect about transition elements

    A

    They show variable oxidation states.

    B

    Their compounds are often colored.

    C

    They often exhibit catalytic activity.

    D

    They have completely filled d subshells in all their oxidation states.

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    18019.

    Ferric sulphate on heating gives:

    A

    SO2β€…β€Šandβ€…β€ŠSO3{\rm{S}}{{\rm{O}}_2}{\rm{\;and\;S}}{{\rm{O}}_3}

    B

    SO2{\rm{S}}{{\rm{O}}_2} only

    C

    SO3{\rm{S}}{{\rm{O}}_3} only

    D

    S only

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    Showing 18011 to 18020 of 18054 entries

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