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प्रश्न
Complete the table given below.
| Heat on sodium chloride | Colour imparted to flame during flame test |
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उत्तर
| Heat on sodium chloride | Colour imparted to flame during flame test | Colour of flame is golden yellow |
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संबंधित प्रश्न
Write balanced chemical equations for the reactions represented by word equations in the conditions for chemical reaction.
Out of sodium and sulphur which is a metal? Explain its reaction with the oxygen.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Chlorine (Cl2) molecule is formed by ______ of electrons between two chlorine atoms.
Give an example of a reaction where the following are involved:
Solution
Name affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.
Distinguish by heating the following in dry test tubs.
Ammonium Chloride and iodine.
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium dichromate.
A chemical reaction is often accompanied by external indications or characteristics which include –
- Colour change
- Effervescence or gas evolved
- Evolution or absorption of heat
- Formation of a precipitate.
With reference to each of the above indications, state the external indication seen during – Thermal decomposition of mercury [II] oxide.
Complete the table given below.
| Heat on Zinc nitrate | Colour of residue |
Select the correct answer from the options given below:
State the gaseous product formed, when
An active metal reacts with dilute sulphuric acid.
