Question

Q1 Explain the following terms

(a) Neutralisation reaction (b) Precipitation reaction

(c) Corrosion (d) Rancidity

(e) Indicators (olfactory indicator) (f) Ductility

(g) Mealliability (h) Sonorous

(i) Lustre (j) Photochemical Reaction

(k) Exothermic & endothermic (l) Water of crystallisation

(m) Oxidation & Reduction reaction

Q2 Define

(a) Combination reaction

(b) Decomposition reaction

(c)displacement reaction

(d) Double displacement reaction

(e) Strong acids & bases

(f) weak acids & bases

(g) Aqua regia

(h) Reactivity series (learn the series also)

Q3 Give reason Why:

(a) Respiration is consider as exotermic reaction

(b) Curd & sour substance not kept in brass vessel.

(c) DRy HCL gas does change the colour of dry litmus.

(d) P.O.P.should be stored in moisture proof container.

(e) Sodium kept in kerosene.

(f) Ionic compounds have high melting point.

Q4 What are amphoteric oxides ? Give two examples with equations.

Q5 Diffrentiate between

1 Calcination & roasting

2 Mineral & ores

3 Metals & nonmetals

4 Properties of acids & bases​

Answer 1

Answer:

I know this answer but I don't have all day.