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प्रश्न
The litmus paper or the litmus solution is obtained from ________ plant
(A) Moss
(B) Lichen
(C) Rose
(D) Hibiscus
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उत्तर
Lichen
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संबंधित प्रश्न
When acids react with metal, which gas is liberated?
Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show acidic character?
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute sulphuric acid reacts with zinc granules.
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute hydrochloric acid reacts with magnesium ribbon.
Complete and balance the followingchemicalequations:
NaHCO3 (S) + HCI (aq) →
Complete and balance the following chemical equations:
CuO (s) + HCI (aq) →
What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.
Which element is common to all acids?
What ions are present in the solutions of following substances? (write the symbols only)
Sulphuric acid
Hydrochloric acid reacts with a metal X to form a gas Y which burns with a 'pop' sound. Sodium hydroxide solution also reacts with the same metal X (on heating) to form the same gas Y.
Name X and Y
Write the chemical formula of sodium carbonate decahydrate.
What is the chemical name of bleaching powder?
Name a metal compound which has detergent properties (cleansing properties).
Write the chemical formula of washing soda. How can it be obtained from baking soda? List two industries in which washing soda is used for other purposes than washing clothes.
Egg shell is made up of ____________.
In an attempt to demonstrate electrical conductivity through an electrolyte, the apparatus setup. Which among the following statement(s) is(are) correct?
- Bulb will not glow because electrolyte is not acidic
- Bulb will glow because NaOH is a strong base and furnishes ions for conduction.
- Bulb will not glow because circuit is incomplete
- Bulb will not glow because it depends upon the type of electrolytic solution
What are strong and weak acids? In the following list of acids, separate strong acids from weak acids.
Hydrochloric acid, citric acid, acetic acid, nitric acid, formic acid, sulphuric acid.
The taste of acid is ______.
Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the solution 'Y' does not show any change in colour, therefore 'X' and 'Y' are:
Give a balanced equation for the reaction:
Silver nitrate solution and sodium chloride solution.
