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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.
उत्तर
Chlorine (Cl2) molecule is formed by sharing of electrons between two chlorine atoms.
संबंधित प्रश्न
When electric current is passed through acidulated water ______ of water takes place.
Write your observation and a balanced equation in the case of the following substances being heated.
Copper nitrate.
Give a word equation for the following reaction.
Two gases which combine to give a solid.
Give a word equation for the following reaction.
An exothermic reaction where both the reactants are gases, one of which is oxygen.
Give reason for the following:
Even though rusting is an exothermic reaction, the heat evolved when an iron nail rusts is unnoticeable.
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.
Complete the statement by filling in the blank with the correct word:
The reddish-brown precipitate obtained during a double decomposition precipitation reaction between an iron salt and alkali is __________.
The percentage composition of Nitrogen in Ureas is ______.
Write five changes in the characteristics of a substance that can take place during a chemical change.
Write the characteristics of chemical change.
