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

Lime water turns milky when ______ gas is passed through it.

Observe the following figure:

If the current in the coil A is changed, will some current be induced in the coil B? Explain.

An object is placed at a distance of 100 cm from a converging lens of focal length 40 cm.
(i) What is the nature of image?
(ii) What is the position of image?

Explain the terms with examples.

Displacement reaction

Name the following diagram and explain the concept behind it.

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

Write a 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.

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 ___________ .

Differentiate between conductors and insulators.

Draw a labelled diagram: Dispersion of light through a prism.

Answer the following:

What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.