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Multiple Choice: Thermal Decomposition of Sodium Carbonate Will Produce - Chemistry

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प्रश्न

Multiple choice:

Thermal decomposition of sodium carbonate will produce

पर्याय

  •  Carbon dioxide

  •  Oxygen

  •  Sodium hydroxide

  • No other product

MCQ

उत्तर

Carbon dioxide

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पाठ 2: Chemical Changes and Reactions - Exercise 2 (B) [पृष्ठ २९]

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सेलिना Concise Chemistry [English] Class 9 ICSE
पाठ 2 Chemical Changes and Reactions
Exercise 2 (B) | Q 12.4 | पृष्ठ २९

संबंधित प्रश्‍न

Give reason.

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FILL IN THE BLANK

The new substances formed during a chemical reaction are called the ..................


State what you would observe when the following substance is heated in a glass test tube red lead.


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(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)

Rusting of iron is a ______ chemical change. 


Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.

Hydrogen chloride


Give reason for the following:

Silver nitrate solution is kept in coloured bottles.


Complete and balance the following reaction:

NaCl(aq) + AgNO3(aq) →


Name Affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.


What do you observe when dilute sulphuric acid is added to the following:

Sodium Sulphide


Distinguish by dilute sulphuric acid.

Sodium Sulphite and sodium carbonate?


Distinguish by dilute sulphuric acid.

Copper and magnesium?


Give a word equation for the following reaction.

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Give a word equation for the following reaction.

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Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed.


Heat may evolve or be absorbed during a ______ change.


Magnesium + oxygen → magnesium oxide.

2Mg + O2 → 2Mg O


How would you show that the settling of curd is a chemical change?


Acid rain is a result of ______.


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