SSC (English Medium) इयत्ता १० वी - Maharashtra State Board Question Bank Solutions for Science and Technology 1

Observe the given figure of reactivity series of metals and answer the following questions:

                    Reactivity series of metals

1. Name two metals which react with water.
2. Name two moderately reactive metals.
3. Name the most highly reactive metal and the most less reactive metal.

The right-hand thumb rule is also called _______ rule.

Which of the following scientist invented the rule of electromagnetic induction?

In Myopia the human eye _______.

Due to elongation of _______ and increase in curvature of the eye lens, a person cannot see distant objects clearly.

In electrolytic reduction of alumina _______ is used as a cathode.

Iron is _______.

If Cu, Fe, Zn, Al elements are arranged in increasing order of their reactivity then the correct order would be which of the following?

Aluminium oxide is _______ oxide.

Atomic number of aluminium is _______ and its electronic configuration is _______.

Extraction of moderately reactive elements is done by _______ and _______ method.

_______ is the least reactive metal.

Fleming's left hand rule : electric current : : Fleming's right hand rule : _______

Nearsightedness: elongated eyeball : : farsightedness: _______

Nearsightedness : concave lens : : farsightedness : _______

In Electrolytic reduction of alumina, Anode : _______ : : Cathode : Graphite lining

Sulphide ores : Roasting : : Carbonate ores : _______

Zinc sulphide : Roasting : : zinc carbonate : _______

Find the odd one out and give its explanation.

Find the odd one out and give its explanation.