SSC (English Medium) 10th Standard Board Exam - Maharashtra State Board Important Questions for Science and Technology 1

What is refraction of light?

Match the Columns:

Given below is a diagram showing a defect of human eye. Study it and answer the following questions.

(i) Name the defect shown in the figure.
(ii) Give reason for this defect of eye in human being.
(iii) Name the type of lens used to correct the eye defect.

Draw a neat and labelled diagram of the structure of the human eye.

Name the following: Main ore of aluminium.

Observe the given figure of reactivity series of metals and answer the following questions:

                    Reactivity series of metals

1. Name two metals which react with water.
2. Name two moderately reactive metals.
3. Name the most highly reactive metal and the most less reactive metal.

Observe the following figure and write the answer of the question.

1. Which process is shown in the figure?
2. Explain the chemical reaction shown in the figure.
3. Write the reactions on anode and cathode.

Non-metal that is a good conductor of electricity:

Write names of first four homologous series of alcohols.

State the importance of Space Missions.

State Newlands‘ Law of Octaves.

Define ‘redox reaction’. Give one example.

Define corrosion.

• Complete the given chemical reaction:
  \[\ce{CuSO4_{(aq)} + Fe_{(s)} ->}\] _______ + _______
• Name the type of the reaction.

Write two applications of sodium bicarbonate (baking soda).

Define 1 volt PD.

Choose the correct alternative and rewrite the following sentence.

When the resistance of a conductor increases, the current will ________ increase.

Tell the odd one out. Give a proper explanation.

Give a scientific reason.

For electric power transmission, copper or aluminium wire is used.

Find the odd one out.