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

The element eka-silicon in Mendeleev’s periodic table is known as ………… in the modern periodic table.

A person has sour taste in the mouth and a burning sensation of the stomach.

1. What is he suffering from?
2. Why does it happen?
3. What substance is used as a remedy?

State the rule to determine the direction of a magnetic field produced around a straight conductor-carrying current.

Taking into consideration the relationship in the first pair, complete the second pair

2H₂ + O₂ → 2H₂O :Combination Reaction :: 2HgO → 2Hg + O₂:_________

Which substance when used with butter having butyric acid can cure acidity?

(A) Lime water

(B) Soda water

(C) Calcium carbonate

(D) Lime juice

State the right-hand thumb rule.

Rewrite the following statements by selecting the correct options:
\[\ce{CaCO3 ->[\Delta] CaO + CO2 ^}\] is a __________ reaction.

What is a solenoid?

Let the period of revolution of a planet at a distance R from a star be T. Prove that if it was at a distance of 2R from the star, its period of revolution will be \[\sqrt{8}\] T.

Give a scientific reason.

When the gas formed on heating limestone is passed through freshly prepared lime water, the lime water turns milky.

Fill in the blank and explain the statement with reasoning:

The initial velocity (during launching) of the Managalyaan, must be greater than ______ of the earth.

State with reasons whether the sentence is  true or false.

If a spacecraft has to be sent away from the influence of earth’s gravitational field, its velocity must be less than the escape velocity.

State with reasons whether the sentence is  true or false .

The escape velocity on the moon is less than that on the earth.

State with reasons whether the sentence is  true or false .

 A satellite needs a specific velocity to revolve in a specific orbit.

State with reasons whether the sentence is  true or false .

 If the height of the orbit of a satellite increases, its velocity must also increase.

What is meant by satellite launch vehicles? Explain a satellite launch vehicle developed by ISRO with the help of a schematic diagram.

Why it is beneficial to use satellite launch vehicles made of more than one stage?

Identify the type of following reaction :

Identify the law shown in the figure and state three respective laws.

Balance the following equation stepwise.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]