Analysis of Brass
Cu(50%-90%),Zn(20%-40%),Sn(0%-6%),Pb(0%-2%),Fe(0%-1%)
Constituents of Brass?
Fe2O3+Silica
Constituents of Haematite
it is the explosive combustion of last part of the fuel and air when flame front is moving across the cylinder.
what is the consequence of peroxide formation (self ignition)?
when active materials completely convert to inactive materials.
When does primary battery stop functioning?
48
Simantak
Cu(O)+NH4->no Cu(O)
How to destroy oxides of nitrogen?
potassium ferri cyanide with Fe3+
colourless
Benzene, Toluene, Xylene
What are Lead free anti-knocking agents?
Lead-acid, Ni-Cd battery
Give examples of secondary batteries.
Person dozing off in class/not paying attention/talking amongst people
Gentleman, get some fresh air.
Pale Blue Ppt.
what ppt is obtained when addition of NH4OH to Brass solution
potassium ferri cyanide with iron (Fe+2)
dark blue colouration
ethyl nitrate
what is additive added to reduce knocking in diesel engine?
lithium is highly reactive in presence of water.
(one half of class) SIR THIS IS THE ANSWER
(other half of class) SIR THAT IS THE ANSWER
Group Discussion
([(12+36−4)×2]+(6144+8)−5)×2−(100−(7×4)+(381))
Gram Equivalent Weight of Na2S2O3?
because Mn2+ has unpaired electrons in the d orbitals for transition from ground to excited state.
why is MnO2 green in colour?
water wash followed by distillation.
how can biodiesel and glycerol be seperated?
ether and diethyl ether
What are the organic solvents used in Li-MnO2 battery?
Sting, Coke, Pepsi, Thumbs Up, Fanta
Fluids sir wants us to find the pH of.
Cupric oxide LHS and Cuprous oxide RHS
because Hg2+ ppt is not formed.
reject the contents of the flask and repeat the experiment.
Ex : NiOx, CoOx, IrO2, RuO2
Co-Catalyst examples
LiPF6,LiBH4,LiAsF6
Which lithium salts are mixed in organic solvents?
chemistry class
what is the best class of the day?