MEDIUM
Earn 100

Write the réaction of rubidium with water.

Important Questions on Reactivity and Rates of Reaction

EASY
A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip the next day, it was noticed that
MEDIUM
Zn, Sn and Pb are less reactive than:
EASY
Out of Al, Zn and Ag, only _____ cannot displace hydrogen from dilute HCl.
EASY
A base can be prepared by the reaction between 
MEDIUM
Which of the following do not release hydrogen when reacts with water?
EASY
The positions of copper is _____ to that of hydrogen in the activity series.
HARD
Calcium is a _____ reactive metal than sodium. (more/ less)
EASY
Most reactive element among the following is:
MEDIUM
Cu displaces _____ from its solution. Zn/ Ag
MEDIUM
On adding dilute hydrochloric acid to granulated zinc placed in a test tube, a student would observe that
EASY
Which of the following is the correct order of metals in the reactivity series of metals?
EASY

_____ reacts with metals and non-metals and forms their oxides.

(Sulphur, Nitrogen, Oxygen, Carbon dioxide, Lighter, Oxygen, Air pollution, CFCs)

EASY
Food cans are coated with tin and not with zinc because
MEDIUM
Which of the following is the correct order of decreasing chemical reactivity of metals?
EASY
Metals above hydrogen in the activity series can displace _____ from water.
EASY
Magnesium reacts with hot water to produce _____ gas.
EASY
Sodium + Oxygen Sodium oxide is an example of _____ oxidation.
MEDIUM
Name the gas evolved when Zinc metal reacts with HCl acid.