Advertisements
Advertisements
प्रश्न
Which among the following are physical or chemical change?
Sublimation of solid ammonium chloride
Advertisements
उत्तर
Physical
APPEARS IN
संबंधित प्रश्न
Define corrosion.
In the following reaction between lead sulphide and hydrogen peroxide:
\[\ce{PbS_{(s)} + 4H2O2_{(aq)} -> PbSO4_{(s)} + 4H2O_{(l)}}\]
- Which substance is reduced?
- Which substance is oxidised?
Give one example of an oxidation-reduction reaction which is also a combination reaction.
Identify from the following reaction the reactants that undergo oxidation and reduction.
\[\ce{2Ag2O → 4 Ag + O2 \uparrow}\]
Give the general group study of hydrogen with reference to
reducing power
State whether the following conversion is oxidation or reduction:
Cu2+ + 2 e-→ Cu
Name:
a solid that is an oxidizing agent.
Complete and balance the following equation:
Zn +_________________→ZnCl2 + H2
Complete and balance the following equation:
\[\ce{K + H2O -> }\]________+ ________
State the condition and give balanced equation for the conversion of coke to water gas.
State what is oxidising agent. Give an example of oxidising agent in the gaseous, liquid, and solid form.
Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid whereas copper does not. Explain why?
The tendency of atoms to have eight electrons in the outer shell is known as ______.
What are redox reactions? Give examples.
Define oxidation number.
Find the oxidation number of the element in the following compound.
Mg in MgO
Find the oxidation number of the element in the following compound.
A1 in AlCl3
