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

What is meant by rust?

Write the chemical formula of rust.

Complete the following table:

Observe the following figure:

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

Which one of the following does not increase while moving down the group of the periodic table?

Give a scientific reason.

When the gas formed on heating limestone is passed through freshly prepared lime water, the lime water turns milky.

Give scientific reason.

It is reccommended to use air tight container for storing oil for long time.

Identify from the reaction the reactants that undergo oxidation and reduction.
Fe + S → FeS

Identify from the following reaction the reactants that undergo oxidation and reduction.

\[\ce{2Ag2O → 4 Ag + O2 \uparrow}\]

Identify from the reaction the reactants that undergo oxidation and reduction.

2Mg + O₂ → 2MgO

Identify from the reaction the reactants that undergo oxidation and reduction.

\[\ce{NiO + H2 -> Ni + H2O}\]

Electromagnetic induction means ______.

Write a short note.

Structure of the modern periodic table.

Write a short note.

Position of isotopes in the Mendeleev’s and the modern periodic table.

Name the following diagram and explain the concept behind it.

Distinguish between:

Concave lens and Convex lens

Identify the type of following reaction :

What would be the correct order if Zn, Fe, Al and Cu are arranged in increasing order of reactivity?

Atomic number of metal ‚A‛ is 11, while atomic number of metal ‚B‛ is 20. Which of them will be more reactive? Write the chemical reaction of dilute HCl  with metal ‚A‛.

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