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

Give scientific reason :
In the electric equipment producing heat e.g. iron, electric heater, boiler, toaster, etc., an alloy such as Nichrome is used, not pure metals.

Write names of first four homologous series of alcohols.

Answer the following question:

Grills of doors and windows are always painted before they are used? Give reason.

 Answer the following:

What is corrosion? Do gold ornaments corrode? Justify.  

Name any six domestic appliances based on the heating effect of electric current.

Explain the construction and working of an electric generator (AC) with the help of a neat diagram.

Rewrite the following statement by selecting the correct option:

1 A = ____________ mA.

Answer the following question:
what is the heating effect of the electric current? state any four applications of it?

Complete the correlation:

Alkene : C = C :: Alkyne: _______.

State true or false:

The frequency of AC is 50 Hz.

• Complete the given chemical reaction:
  \[\ce{CuSO4_{(aq)} + Fe_{(s)} ->}\] _______ + _______
• Name the type of the reaction.

The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is _______ of the distance between them.

The value of universal gravitational constant (G) in the SI unit is ______.

The _______ force is much weaker than other forces in nature.

The ‘live’ and the ‘neutral’ wires have potential difference of _______.

In an electric bulb, coil of _______ metal is used.

The electricity bill specifies the usage in _______.

These days when current in the circuit suddenly increases _______ switches are used.

A coil of an alloy _______ is used in electric heater cooker as a resistor.

Which of the following substance contracts on heating?