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

Explain the terms with examples.

Displacement reaction

Which of the statement given below correctly describes the magnetic field near a long, straight current carrying conductor?

Compare the magnetic field produced by a solenoid with the magnetic field of a bar magnet. Draw neat figures and name various components.

Name the following diagram and explain the concept behind it.

Write chemical equation for the event.
Aluminium came in contact with air.

Write chemical equation for the event.

Iron filings are dropped in aqueous solution of copper sulphate.

Write the chemical equation for the event.

A reaction was brought about between ferric oxide and aluminium.

Write chemical equation for the event.

Electrolysis of alumina is done.

Write a chemical equation for the following event.

Zinc oxide is dissolved in dilute hydrochloric acid.

Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.

Observe the figure and write accurate conclusion regarding refraction of light.

What is the correct reason for blinking / flickering of stars? Explain it.
a) The blasts in the stars.
b) Absorption of star light by the atmosphere.
c) Motion of the stars.
d) Changing refractive index of gases in the atmosphere.

What are space expeditions? Explain their need and importance in your words. 

i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine

i) Observe the following reaction and answer the following questions.
`CuSO_4 (aq) + Fe (s) →  FeSO_4(aq) + Cu (s)`
a) Identify and write the type of chemical reaction.
b) Write the definition of above reaction.

The reaction of iron nail with copper sulphate solution is ______ reaction.

Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.

The phenomenon of splitting of light into its component colours is ___________ .

Choose the correct alternative and rewrite the following:

A glass slab is placed in the path of convergent light. The point of convergence of light

Differentiate between conductors and insulators.