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Maharashtra State BoardSSC (English Medium) 10th Standard

What are catalysts?

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Question

What are catalysts?

Very Short Answer
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Solution

Catalyst is a substance which increases the rate of a reaction without causing any disturbance to it.

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Chapter 9: Carbon compounds - Solve the following Questions

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SCERT Maharashtra Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
Chapter 9 Carbon compounds
Solve the following Questions | Q 7.1

RELATED QUESTIONS

In an experiment to study the properties of ethanoic acid, a student takes about 3 mL of ethanoic acid in a dry test tube. He adds an equal amount of distilled water to it and shakes the test tube well. After some time he is likely to observe that

(A) a colloid is formed in the test tube.

(B) the ethanoic acid dissolves readily in water.

(C) the solution becomes light orange.

(D) water floats over the surface of ethanoic acid.


When ethanol reacts with ethanoic acid in the presence of conc. H2SO4, a substance with fruity smell is produced. Answer the following:-

(i) State the class of compounds to which the fruity smelling compounds belong. Write the chemical equation for the reaction and write the chemical name of the product formed.

(ii) State the role of conc. H2SO4 in the reaction.


Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>


Write the name and chemical formula of the simplest organic acid.


Draw the structure of butanoic acid.


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Which compound contains a carboxyl group? Write its name and structural formula.

 


Describe one reaction of a carboxylic acid.


Give any two uses of ethanoic acid.

 

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Write the formula of the acid and the alcohol from which it is formed.


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Which compound is a constituent of vinegar?(e) Which compound is a constituent of vinegar?


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Name the reducing agent used to convert acetic acid into ethanol.


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(B) It turns blue litmus red and smells like burning sulphur

(C) It turns res litmus blue and smells like vinegar

(D) It turns red litmus blue and has a fruity smell


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(3) an orange

(4) a lemon 


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(4) Calcium acetate 


Give the structural formula of Acetic acid.


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Explain the following reaction with an example.

Esterification


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