SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Question Bank Solutions for Science and Technology 1

Find the odd one out and give its explanation.

The modern periodic table is divided into which blocks?

Write chemical formula for rust.

Write Fleming’s right hand thumb rule with the help of diagram.

Write Fleming’s left hand rule.

Write the two names in the following diagram.

Right hand thumb rule.

Write the two names in the following diagram.

Fleming’s right hand rule.

Write the name.

The lens used in simple microscope.

The modern periodic table has 1 to 7 periods.

The modern periodic table shows the molecular masses of the elements in each frame.

p-block is composed of groups 1 and 2.

To the left of the zig-zag line in the periodic table are the metal elements.

The K and L shells of the elements Na and Mg contain electrons.

The power of the magnifying glass depends on the distance of the magnifying glass from object.

Write an Explanation.

Period

Write scientific reason.

There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.

Write scientific reason.

Lithium and sodium are included in the same group in periodic table.

Write scientific reason.

Adults need bifocal lens spectacle.

Complete the following flow chart.

In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number.