How many mole of AgNO 3 are there in 500cm3 of 0.01MAgNO3 solution?
0.005 mole
0.05 mole
0.5 mole
5 moles
1 mole
Correct answer is A
No explanation has been provided for this answer.
The following alloys contain copper except
magnalium
duralumn
bronze
brass
type metal
Correct answer is A
No explanation has been provided for this answer.
Ca(HCO 3)2 → CaCO3 + H2O + CO2
MgSO4 + Na 2CO3 + Na 2SO
Ca(OH) 2 + 2HCI → CaCI 2 + 2H 2O
Ca(HCO3)2 + Ca(OH)3 → 2CaCO3 + 2H2O
MgSO4 + BaCI2 → MgCI2 + BaSO4
Correct answer is B
No explanation has been provided for this answer.
+2 to + 6
+ 4 to + 6
0 to + 6
- 2 to + 4
+2 to + 4
Correct answer is B
No explanation has been provided for this answer.
Which of the following pollutants is biodegradable ?
Sewage
Plastics
Metal scrape
Lead compounds
Hydrogen sulphide
Correct answer is A
No explanation has been provided for this answer.