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What Do You Observe? When Water is Added to the Quick Lime. - Chemistry

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प्रश्न

What do you observe? When

Water is added to the quick lime.

एक पंक्ति में उत्तर

उत्तर

Quick lime reacts vigorously with water to produce slaked lime, i.e. calcium hydroxide.

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अध्याय 2: Chemical Changes and Reactions - Exercise 2 (C) [पृष्ठ ३२]

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सेलिना Concise Chemistry [English] Class 9 ICSE
अध्याय 2 Chemical Changes and Reactions
Exercise 2 (C) | Q 11.6 | पृष्ठ ३२

संबंधित प्रश्न

The chemical name of baking soda is ______.


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


Fill in the blank

 A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.


Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.

\[\ce{NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)}}\]


Write the missing reactants and products and balance the equations.

\[\ce{KClO3 ->[heat]}\] ___________+ ____________


FILL IN THE BLANK

In a double decomposition precipitation reaction both the reactants must be ............ soluble.


FILL IN THE BLANK

Positively charged ions are called ........


TRUE \ FALSE

Evaporation of water is a physical change. True or false ?


Is kerosene an electrolyte or a non-electrolyte ?


 Fill in the blank

A new substance is formed in a _______ change.


A chemical equation is a statement that describes a chemical change in terms of


Give an example of a reaction where the following are involved

Heat


Define Photochemical reaction
Give an example

 


Write the chemical reaction where the following changes are observed.

Colour change is noticed


Multiple choice:

Thermal decomposition of sodium carbonate will produce


What do you observe when H2S is passed through a lead nitrate solution.


Give a balanced equation for a reaction involving the evolution of gas on the addition of dilute acid to sodium sulphite.


Burning of paper is a ______ change.


Write a note on the following:

Fermentation


______ is the chemical name of limestone.


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