SSC (English Medium) 10th Standard - Maharashtra State Board Question Bank Solutions

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.

Complete the correlation:

DC : Non-oscillatory current flowing in one direction : : AC : ______

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

Calculate the escape velocity on the surface of the moon given the mass and radius of the moon to be 7.34 × 10²² kg and 1.74 × 10⁶ m respectively.

(Given: G = 6.67 × 10^-11 Nm²/kg²)

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.

When is free fall possible?

Write the name and symbol of the element from the description.

The most electronegative atom.

Write the name and symbol of the element from the description.

The most reactive nonmetal.

Write the name from the description.

The family of nonmetals having valency one.

Identify the figure and explain its use.

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.

The halogen which is liquid at room temperature is ..................

Complete the following flow chart. 

______ is in liquid form in the halogen family.

Find the correlation:

Cl : halogen group : : Ar : _______

Find the correlation:

Iodine : solid : : bromine : _______

Find the odd one out and give its explanation.

Write the name.

A halogen from period 4.

Right or wrong sentence.

All the elements in the halogen family are gases.