SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Important Questions for Science and Technology 1

______ is the functional group of carboxylic acid.

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.

Identify the hydrocarbon from the given electron-dot structure:

\[\begin{array}{cc}
\phantom{}\ce{H}\phantom{....}\ce{H}\phantom{}\\
\phantom{}\ce{H}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{\overset{\bullet\phantom{.}\bullet}{\underset{\bullet\phantom{.}\bullet}{C}}}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{\overset{\bullet\phantom{.}\bullet}{\underset{\bullet\phantom{.}\bullet}{C}}}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{H}\phantom{}\\
\phantom{}\ce{H}\phantom{....}\ce{H}\phantom{}\\
\end{array}\]

State with reason whether the sentence is true or false.

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

What is meant by an artificial satellite?

What is meant by satellite launch vehicles?

Complete the following table.

Solve the problem.

How much time a satellite in an orbit at height 35780 km above earth's surface would take, if the mass of the earth would have been four times its original mass?

Considering first correlation, complete the second.
Hubble telescope : At 569 km above the earth’s surface
Orbit of Hubble telescope : .............................

What are space expeditions? Explain their need and importance in your words. 

Mahendra and Virat are sitting at a distance of 1 metre from each other. Their masses are 75 kg and 80 kg respectively. What is the gravitational force between them? G = 6.67 x 10^-11 Nm²/kg² 

Write the importance of artificial satellites in your words.

Choose and write the correct option. 

Which of the following astronauts travelled through space shuttle ‘Discovery’ first time?

Write the proper name of the orbits of satellites shown in the following figure with their height from the earth’s surface.

By considering first correlation complete the second correlation:

Hubble telescope: 569 km high from the earth surface

Revolving orbit of Hubble telescope: ______

What is meant by space debris?

The astronomical object closest to us is _________ in our galaxy.

Name the first artificial satellite sent by Russia in space.

If a spacecraft is to be sent to travel to outer space, it must have a minimum velocity of _______.

A group of students from COEP Pune sent a small satellite _______ through ISRO in 2016.