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DINESH PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS -N.C.E.R.T. End Exercise
- Which of the statements about the reaction below are incorrect? 2PbO...
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- Fe(2)O(3) + 2Al rarr Al(2)O(3) + 2Fe The above reaction is an exampl...
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- What happens when dilute hydrochloric acid is added to iron fillings ?...
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- What is a balanced chemical equation? Why should chemical equations be...
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- Translate the following statements into chemical equations and then ba...
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- Balance the following chemical equations: (a) HNO(3)+Ca(OH)(2)toCa(...
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- Write the balanced chemical equations for the following reactions: (...
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- Write the balanced chemical equations for the following and identify t...
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- What does one mean by exothermic and endothermic reactions? Give examp...
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- Why is respiration considered an exothermic reaction? Explain.
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- Why are decomposition reactions called the opposite of combination rea...
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- Write one equation each for decomposition reactions where energy is su...
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- (a) What is the difference between displacement and double displacemen...
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- In the refining of silver, the recovery of silver from silver nitrate ...
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- What do you mean by a precipitation reaction? Explain by giving exampl...
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- Explain the following in terms of gain or loss of oxygen with two exam...
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- A shiny brown coloured element ‘X’ on heating in air becomes black in ...
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- Why do we apply paint on iron articles?
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- Oil and fat containing food items are flushed with nitrogen. Why?
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- Explain the following terms with one example each: (a) Corrosion (b)...
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