NCERT Lab Manual VII — task. Science CBSE, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Answer the following questions:

1. Write the chemical reaction of zinc with dil. sulphuric acid.

\(Zn\)(s) + \(H_2SO_4\)(aq) → \(ZnSO_4\)(g) + \(H_2\)(aq)
\(Zn\)(s) + \(H_2SO_4\)(aq) → \(ZnSO_4\)(l) + \(H_2\)(l)
\(Zn\)(s) + \(H_2SO_4\)(aq) → \(ZnSO_4\)(aq) + \(H_2\)(g)
\(Zn\)(s) + \(H_2SO_4\)(aq) → \(ZnSO_4\)(s) + \(H_2\)(l)

2. What are the others metals among the species \(Mg\), \(Al\), \(Fe\), \(Sn\), \(Pb\), \(Cu\), \(Ag\) which react with dil. sulphuric acid to produce hydrogen gas?

All the metals react with dilute sulphuric acid to produce hydrogen gas. It does not matter which is used for the reaction; we always get salt and hydrogen gas.

Metal + Acid → Salt + Hydrogen gas

However, the reaction rate is determined by the metal used and its position in the . The rate at which a metal reacts with acids is related to its reactivity.

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84. NCERT Lab Manual VII

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