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प्रश्न
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.
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उत्तर
Chlorine (Cl2) molecule is formed by sharing of electrons between two chlorine atoms.
संबंधित प्रश्न
Fill in the blanK
A .............is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
Name three reducing agents ?
A solution of a substance ‘X’ is used for white washing Name the substance ‘X’ and write its formula.
Give an example of a reaction where the following are involved
Light
Explain,giving one example of the following chemical changes:
Reversible reaction
State the original colour of the following substance and colour of residue obtained after heating.
Lead nitrate
Give examples of exothermic reactions i.e. heat evolved in each of the following:
(a) reaction between a solid and a liquid
(b) reaction between two gases
Give two examples of exothermic reactions seen in everyday life.
Select the correct answer for the following options:
The gas obtained when potassium chlorate is heated in the presence of a catalyst.
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.
Explain the Silver nitrate solution is kept in coloured reagent bottles in the laboratory.
