SSC (English Medium) इयत्ता १० वी - Maharashtra State Board Question Bank Solutions for Science and Technology 1

Draw a neat and labelled diagram for dispersion of light.

Classify the following metals based on their reactivity.
Cu, Zn, Ca, Mg, Fe, Na, Li, Hg

Explain the following reaction with the balanced equation.

Sodium burns in air

Explain the following reaction with the balanced equation.

Reaction of aluminium with oxygen

Explain the following reaction with the balanced equation.

Magnesium reacts with dil HCl

Explain the following reaction with the balanced equation.

Sulphur burns in air

Describe the merits of Mendeleev’s periodic table?

Describe the merits of Mendeleev’s periodic table?

Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.

Observe the given figure and write appropriate phenomenon of light in the box.

Observe the given figure and answer the following questions.

1. Which colour light rays bend most?
2. Which colour light rays bend least.
3. What is the wavelength of violet light rays?

Observe the following diagram and identify the type of reaction and write observation.

Explain why spacecraft take longer to reach the moon than light?

______ colour is deviated the least in the spectrum of white light obtained with a glass prism.

Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':

Identify the type of chemical reaction given below:

\[\ce{CuSO4 + Fe -> FeSO4 + Cu}\]

Complete the following chemical reaction:

\[\ce{CuSO4 (aq) + Pb (s) -> \underline{}\underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}\underline{}}\]

Name the chemical reaction type.

Metal ‘A’ has electronic configuration 2, 8, 1 and metal ‘B’ has electronic configuration 2, 8, 8, 2. Out of these, which metal is more reactive? Write the reaction of this metal with dilute HCl acid.

Complete the given chemical equation:

\[\ce{Zn(s) + CuSO4(aq) -> \underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}}\]

Name the type of reaction.

When a spacecraft is launched into outer space, the velocity attained by it should be greater than the escape velocity.