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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Give Word Equation for the Following Chemical Reaction and Give the Names of the Product Formed. Zn + 2hc1→ Zncl2 + H2 - Chemistry

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प्रश्न

Give word equation for the following chemical reaction and give the names of the product formed.

Zn + 2HC1→ ZnCl2 + H2

एका वाक्यात उत्तर
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उत्तर

Zinc + dilute Hydrochloric acid→ Zinc chloride + Hydrogen
The product formed is gas evolved i.e. hydrogen.

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पाठ 5: Language of Chemistry - Exercise

संबंधित प्रश्‍न

Write complete balanced equation for the following reaction:

Sulphur dioxide (gas) + Oxgyen (gas)   Sulphur trioxide (gas)


Is Decomposition of calcium carbonate an endothermic reaction or an exothermic reaction?


What happens when silver nitrate solution is added to sodium chloride solution?
Write the equation for the reaction which takes place.


Write word equation for the following skeletal equation:

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]


Balance the following equation:

\[\ce{S + HNO3 -> H2SO4 + NO2 + H2O}\]


What information does the following chemical equation convey?

Zn + H2SO4 → ZnSO4+ H2


(a) Give only one suitable chemical test to identify the following gases.

  1. Ammonia
  2. Sulphur dioxide
  3. Hydrogen Chloride
  4. Chlorine
  5. Carbon Dioxide
  6. Oxygen
  7. Hydrogen

(b) Select a basic gas mentioned in Q.1 (a). How is the basic nature suspected?

(c)Select acidic gases from the gases mentioned in Q.1 (a). How is the acidic nature suspected?

(d) State the gas responsible for bleaching action.

(e)Which gas turn blue cobalt chloride paper light pink?

 


In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:

Lead nitrate to ammonium hydroxide.?


Balance the following simple equation:

Al   +   O2  →  Al2O3 


Balance the given chemical reaction as per the instructions below.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]

Balance the equation with proper coefficient and rewrite the equation.


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