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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
APPEARS IN
संबंधित प्रश्न
Dilute NaOH can be tested with
(a) red litmus paper
(b) blue litmus paper
(c) lime water
(d) Na2CO3
When acids react with metal, which gas is liberated?
Why does an aqueous solution of an acid conduct electricity?
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute hydrochloric acid reacts with magnesium ribbon.
Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. In which test tube will the fizzing occur more vigorously, and why?
What happens when an acid reacts with a metal? Give the chemical equation of the reaction involved.
What happens when an acid reacts with a base? Explain by taking the example of hydrochloric acid and sodium hydroxide. Give equation of the chemical reaction which takes place. What is the special name of such a reaction?
What is a neutralisation reaction? Explain with an example. Give the chemical equation of the reaction which takes place.
What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.
Write the chemical formula of soda ash.
Name the product formed when Cl2 and H2 produced during the electrolysis of brine are made to combine.
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.
Lime water reacts with chlorine to form:
Which of the following is used for dissolution of gold?
Which of the following statements is true for acids?
Copper or brass cooking vessels are coated with tin metal. Why?
The taste of acid is ______.
A substance 'X' is used as a building material and is insoluble in water. When it reacts with dil. HCl, it produces a gas which turns lime water milky.
- Write the chemical name and formula of 'X'.
- Write chemical equations for the chemical reactions involved in the above statements.
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
C is a soluble salt of copper.
