SSC (English Medium) इयत्ता १० वी - Maharashtra State Board Question Bank Solutions for Science and Technology 1

In the presence of the acid catalyst, ethanoic acid reacts with ethanol and ______ ester is produced.

The reaction between acetic acid and sodium carbonate is shown in the following figure.

Answer the questions with the help of a diagram.

1. Which gas does come out as effervescence in the big test tube?
2. What is the colour change in the lime water present in the small test tube?
3. Write the related reaction.

Ethanoic acid reacts with the basic salt, sodium carbonate, to form a salt, named ______, water and carbon dioxide gas.

Bubbles are seen in the test tube during the preparation of lime water.

Observe the diagram given below and answer the questions:

1. Name the reactants in this reaction.
2. Which gas comes out as effervescence in the bigger test tube?
3. What is the colour change in the lime water?
4. In the above experiment instead of sodium carbonate which chemical can be used to get same products?
5. Write the use of acetic acid.

Write answer as directed.
Give names of three natural polymers. Write the place of their occurance and names of monomers from which they are formed.

Complete the following flow chart. 

Find the odd one out and give its explanation.