SSC (English Medium) 10th Standard - Maharashtra State Board Question Bank Solutions

What is meant by a satellite launch vehicle?

Write the molecular formula of calcium carbonate.

Name any one Indian satellite launch vehicle.

Draw a neat diagram of a solenoid and name its various components.

Identify the hydrocarbon from the given electron-dot structure:

\[\begin{array}{cc}
\phantom{}\ce{H}\phantom{....}\ce{H}\phantom{}\\
\phantom{}\ce{H}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{\overset{\bullet\phantom{.}\bullet}{\underset{\bullet\phantom{.}\bullet}{C}}}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{\overset{\bullet\phantom{.}\bullet}{\underset{\bullet\phantom{.}\bullet}{C}}}\phantom{..}\ce{\text{}^\bullet_\bullet}\phantom{..}\ce{H}\phantom{}\\
\phantom{}\ce{H}\phantom{....}\ce{H}\phantom{}\\
\end{array}\]

Reaction of iron nails with copper sulphate solution is an example of
(a) Combination reaction
(b) Decomposition reaction
(c) Displacement reaction
(d) Double displacement reaction

An object of 10 cm is placed in front of a plane mirror. The height of image will be …………….
(a) 5 cm
(b) 15 cm
(c) 20 cm
(d) 10 cm

When a ray of light travels from air to glass slab and strikes the surface of separation at 90°, then it …………….
(a) bends towards normal
(b) bends away from normal
(c) passes unbent
(d) passes in zigzag way

Explain how spectrum is formed.

When rays of light are incident on a glass slab then the incident ray and emergent ray are _________ each other.

1. perpendicular
2. parallel
3. opposite
4. concurrent

What is a spectrum?

The element eka-silicon in Mendeleev’s periodic table is known as ………… in the modern periodic table.

The element eka-silicon in Mendeleev’s periodic table is known as ………… in the modern periodic table.

CuSO_4(aq) + Zn_(s) → ZnSO_4(aq) + Cu_(s) is an example of a decomposition reaction.

The reddish brown deposit formed on iron nails kept in a solution of copper sulphate is

1. Cu₂O
2. Cu
3. CuO
4. CuS

Choose the correct alternative and rewrite the following sentence.

A ray of light strikes the glass slab at an angle of 50°. What is the angle of incidence?

Write a short note on dispersion of light.

Define refraction and state the laws of refraction.

Explain how the formation of a rainbow occurs.

Why do we get a spectrum of seven colors when white light is dispersed by a prism?