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

Generally _______ is called spirit.

Nearsightedness: elongated eyeball : : farsightedness: _______

Nearsightedness : concave lens : : farsightedness : _______

Write the molecular formula of the given compound.

Sodium ethoxide

Write the molecular formula of the given compound.

Ethanol

Right or wrong sentence.

Nanometer unit is used to measure atomic radius.

Right or wrong sentence.

Moving from left to right, the size of the atom decreases.

Right or wrong sentence.

The size of an atom depends on the number of valence electrons.

Colorless ethanol is in liquid state at room temperature.

Ethanol is soluble in water in all proportions.

Write an explanation.

Atomic radius

Write scientific reason.

In same period, boron and oxygen elements have different atomic size.

Write scientific reason.

Nearsightedness, this defect can be corrected by using spectacles with concave lens.

Write scientific reason.

Space debris can be harmful to artificial satellites.

Some elements and their atomic radii are given here. Arrange them in decreasing order of their atomic radii. Identify which of the above elements is the biggest atom and which is smallest?

Write the characteristics of ethanol.

Write the uses of ethanol.

Write information about the given atomic numbers in the table.

Observe the given below the figure, correct it and explain and write about the concept depicted in this figure.

Given below is a diagram showing a defect of vision. Name the defect of vision and draw an accurately labelled diagram to correct this defect.