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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Name the Type of Chemical Reaction Shown by the Following Equation: Naoh + Hcl → Nacl + H2o

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प्रश्न

Name the type of chemical reaction shown by the following equation:

NaOH + HCl → NaCl + H2O

एका वाक्यात उत्तर
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उत्तर

NaOH + HCl → NaCl + H2O  => Double decomposition reaction .

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पाठ 5: Language of Chemistry - Additional questions

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 5 Language of Chemistry
Additional questions | Q 8.4

संबंधित प्रश्‍न

 Fill in the blank.
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FILL IN THE BLANK

Negatively charged ions are called ..........


TRUE \ FALSE

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Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
To prevent rusting, a layer of ______ metal is applied on iron sheets.


State the conditions necessary for a chemical change or reaction.


Define an electrochemical reaction.


Give an example of the following chemical change.

Two solids combine to form a liquid


Multiple choice:

Which of the following is not a characteristic of a chemical change?


What do you observe? When

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What do you observe? When

Sodium chloride solution is added to silver nitrate solution.


Explain the term ‘chemical reaction’ with special reference to – ‘reactants’ and ‘products’.


Give a word equation for the following reaction.

A salt which reacts with ammonium hydroxide to give a reddish brown precipitate.


Name the following:

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On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.

A coloured substance which leaves a black residue and evolves two gases one of which is acidic and coloured and the other neutral and colourless.


State the following reaction represent oxidation or reduction.

\[\ce{H->H+}\]


A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?


Chemical change is a temporary change.


A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.

Write a word equation for the chemical change, if any.


Galvanization is a process in which ______ is coated as a layer of iron.


Write five changes in the characteristics of a substance that can take place during a chemical change. 


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