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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Give a Word Equation for the Following Reaction. Two Solids Which Combine on Heating, to Give a Liquid. - Chemistry

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प्रश्न

Give a word equation for the following reaction.

Two solids which combine on heating, to give a liquid.

एक पंक्ति में उत्तर
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उत्तर

Carbon + Sulphur → Carbon disulphide

C + S → CS(l)

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अध्याय 5: Language of Chemistry - Objective Type Questions

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विराफ जे दलाल New Simplified Middle School Chemistry [English] Class 7
अध्याय 5 Language of Chemistry
Objective Type Questions | Q 2.1

संबंधित प्रश्न

When carbon dioxide is passed through lime water, it turns milky due to the formation of ______.


Changes in which new substances are formed are called ______ changes.


What are biocatalysts ?


Differentiate between in Chemical reaction and chemical equation.


Fill in the blank:
The substances formed as a result of a chemical reaction are called _______


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.


Reactants Products Type of chemical reaction
BaCl2(aq) + ZnSO4(aq) H2CO3(aq) Displacement
2AgCl(s) FeSO4(aq) + Cu(s) Combination
CuSO4(aq) + Fe(s) BaSO4↓ + ZnCl2(aq) Decomposition
H2O(l) + CO2(g) 2Ag(s) + Cl2(g) Double displacement

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.


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

Sodium chloride


What is a chemical change? Give two examples of chemical change?


What do you observe? When

Sodium chloride solution is added to silver nitrate solution.


Complete and balance the following reaction:

NaCl(aq) + AgNO3(aq) →


Give a chemical test to distinguish between the following gases. 

HCl and Cl2


Give a chemical test to distinguish between the following gases. 

SO2 and Cl2 


Give a suitable example with an equation to show the representation of a chemical reaction.


A reaction between an acid and a base is called ______.


Write the chemical reaction of baking soda with lemon.


When milk is mixed with coffee decoction, the colour of milk and decoction changes due to ______.


What is thermochemical reactions?


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