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    Home » An element occupies group number 1 and period number 3. This element heated in the air gives compound A. With water, it gives compound B which is a strong base. The reaction of B with ammonia gives compound C, which is used as a reducing agent in organic chemistry. Identify the element A, B, and C.

    An element occupies group number 1 and period number 3. This element heated in the air gives compound A. With water, it gives compound B which is a strong base. The reaction of B with ammonia gives compound C, which is used as a reducing agent in organic chemistry. Identify the element A, B, and C.

    Dr. Vikas JasrotiaBy Dr. Vikas JasrotiaJune 19, 2022Updated:June 19, 2022No Comments
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    Que. An element occupies group number 1 and period number 3. This element heated in the air gives compound A. With water, it gives compound B which is a strong base. The reaction of B with ammonia gives compound C, which is used as a reducing agent in organic chemistry. Identify the element A, B, and C.
    Ans. (i) As per the position in the periodic table this element occupying group number 1 and period number 3 is sodium.
    (ii) When Sodium is heated in air, it forms sodium peroxide (A)
    4Na + O2 → 2 Na2O2
    (iii) With water, sodium gives sodium hydroxide (B)
    2Na + 2H2O → 2NaOH + H2
    (iv) With ammonia, sodium gives sodamide (NaNH2) at 570-670 K
    2Na + 2NH3 → 2 NaNH2 + H2
    The element is sodium.
    Compound A is sodium peroxide.
    The compound B is sodium hydroxide.
    Compound C is sodamide.

     

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    An element occupies group number 1 and period number 3. This element heated in the air gives compound A. With water and C. B it gives compound B which is a strong base. The reaction of B with ammonia gives compound C which is used as a reducing agent in organic chemistry. Identify the element A
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