SSC (Marathi Semi-English) 10th Standard Board Exam [इयत्ता १० वी] - Maharashtra State Board Question Bank Solutions for Science and Technology 1

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?

_______ heat is necessary to raise 1 kg of water from 14.5 °C to 15.5 °C.

In Wilfley table method to separate particles of gangue _______ method is used.

The chemical formula of zinc blend is _______.

The unsaturated hydrocarbons containing a carbon-carbon double bond are called _______.

The phenomenon in which compounds having different structural formulae have the same molecular formula is called _______.

While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.

The general molecular formula for the homologous series of alkynes is _______.