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

Identify the type of following reaction :

Identify the law shown in the figure and state three respective laws.

Balance the following equation stepwise.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]

Study the following figure and answer questions. 

a) After heating Calcium carbonate, which gas is formed in a test tube?
b) When we pass this gas through limewater what change, did you observe?
c) Write down the chemical reaction showing the product formation after heating the Calcium carbonate.

How can the rate of the chemical reaction, namely, decomposition of hydrogen peroxide be increased?

The vapour content in the air is measured using a physical quantity called ______.

Observe the given figure showing the orbit of a planet moving around the Sun and write the three laws related to it:

The orbit of a planet moving around the Sun

The orbit of a planet revolving around a star is ______.

The square of its period of revolution around the sun is directly proportional to the ______ of the mean distance of a planet from the sun.

The elements from the zero group are called ______.

The chemical reaction in which two or more products are formed from a single reactant is called ______ reaction.

Humid and dry nature of air depends on the ______.

Vapours in air condenses to form ______.

Find the correlation:

Eka boron : Scandium : : Eka Aluminum : ______

Find the correlation:

Two elements in the same position : demerit of Newland's octaves : : place for Isotopes : ______

Relative humidity greater than 60% : humid air : : relative humidity less than 60% : _______

Find the odd one out and give its explanation.

Find the odd one out and give its explanation.

What is a dew point temperature?