SSC (English Medium) 10th Standard - Maharashtra State Board Question Bank Solutions for Science and Technology 1

Right or wrong sentence.

As one ascends in any homogeneous category, physical properties change in one direction.

There are different general molecular formula for all members of the homologous series.

Write scientific reason.

A coil made up of alloy Nichrome is used in the electric heater cooker as a resistor.

Write scientific reason.

Magnetic separation method is used to separate the magnetic ingredients in the ores.

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

Name any two appliances which works on the phenomenon of heating effect of electric current.

Explain the importance/uses of fuse wire.

Find the amount heat needed needed to raise the temperature of a piece of iron of mass 500gby 20C. (c=0.110cal/g.C)

If water of mass 60 g and temperature 60 ˚C is mixed with water of mass 60 g and temperature 40 ˚C, what will be the maximum temperature of the mixture?

Find the amount of heat needed to raise the temperature of a piece of iron of mass 500 g by 20 °C. (c = 0.110 cal/g.°C)

Write the molecular formulae of the following compound.

Copper pyrite

Write the molecular formulae of the following compound.

Stannic oxide

Write the molecular formulae of the following compound.

Ferrous tungstate

Draw a neat and labelled diagram for Froth Floatation Process.

Distinguish between:

Froth floatation - Leaching

Write a short note.

Homologous series

Explain concept with example/explain with the help of a balanced equation.

Gangue

Explain concept with example/explain with the help of a balanced equation.

Minerals

Complete flow chart given below.

State Newton’s universal law of gravitation. Express it with the mathematical form of force of gravitation?