A black coloured substance x is hard and porous When it is burnt in the presence of - Science - Natural Resources

Question

A black coloured substance ‘x’ is hard and porous When
it is burnt in the presence of air, it produces a gas
‘y’ which turns lime water milky Name ‘x’
and ‘y’ and write the equations involved

Joydeep Singh · Answer

X= COAL
Y=CARBON DI OXIDE
EQUATION= C+02=C02
NOTE:(2 IS IN SUBSCRIPT)

A black coloured substance ‘x’ is hard and porous. When it is burnt in the presence of air, it produces a gas ‘y’ which turns lime water milky. Name ‘x’ and ‘y’ and write the equations involved.