Question

(11
сно, во в совно Energy
CROH. Nas) - 20H ONa+H,8).
Write the balanced chemical equations for the
ollowing reactions and identify the type of reaction
n each case.
In thermite reaction, iron (III) oxide reacts with
aluminium and gives molten iron and aluminium
oxide.
1) Magnesium ribbon is burnt in an atmosphere of
nitrogen gas to form solid magnesium nitride.
(NCERT Exemplar)
5) Fe09) + 2A) 4, 2Fe + A10,()
Iron (Inoxide Aluminium Molten iron Aluminium oxide
It is a displacement reaction.
[1]
i) 3Mg(s) + N(E) -- Mg, N. (8)
Magnesium Nitrogen
Magnesium nitride
It is a combination reaction.
1]
What happens when? (Write chemical equation only)
() Zine dust is mixed with dilute sulphuric acid.
ii) Sodium oxide is dissolved in water?
(2020)
1) Zn + H.SO. - 2n80, + H1
It is displacement reaction.
1) Na 0+ HO 2NaOH
It is combination reaction.
11 +11
Explain with reason as to why the blue colour of
aqueous copper sulphate solution fades away slowly
when an iron rod is dipped into it
tron being more reactive than copper displaces copper from
opper sulphate solution. Thus, blue colour of the solution
ades and copper metal gets deposited
(2018)​

Answer 1

Answer:

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