SSC (English Medium) इयत्ता १० वी - Maharashtra State Board Question Bank Solutions

Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.

Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.

Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.

Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is slowly added to water with constant stirring.

Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.

Give a scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.

Fill in the blank:

The formulae of chloride of metal M is MCl2. The metal M belongs to ……………. group.

Corrosion can be prevented by using ……………. solution.

Calculate the focal length of a corrective lens having power +2D.

Define ‘redox reaction’. Give one example.

Elements in the same group show the same valency. Give scientific reason.

Write the electronic configuration of K and Ne.

The chemical formula for rust is.............. .

Calculate the focal length of a corrective lens having power +2.5 D.

The atomic masses of three elements A, B and C having similar chemical properties are 7, 23 and 39, respectively.

1. Calculate the average atomic mass of elements A and C.
2. Compare the average atomic mass with atomic mass of B.
3. What could the elements A, B and C be?

Classify the following elements into metals, non-metals and metalliods

As, C, Hg, Mg, S, Si

Kavita from 10th is using spectacles. The power of the lenses in her spectacles is –2.5 dioptre. Answer the following questions:

1) Which lenses are used in her spectacles?

2) State the defect of vision Kavita is suffering from.

3) Find the focal length of the lenses used in her spectacles

Differentiate between Normal elements and Transition elements.

Define corrosion.

What is meant by rust?