New Concepts/Shortcuts 2 Flashcards
what should be the approach to solve the collision problems in 2D kinematics
ALWAYS START WITH RELATIVE CONCEPT
what can we infer from this statement
the P(x) is a quadratic polynomial
column tube is open/closed tube
closed tube
what to do if we have diameter/radius given of the reso tube
consider the end correction
what do we do with the error of correction in resonance tubes calculation
add it to the length of the tube and use it normally in the formulae!
eg:
what’s the formula for end correction of reso tube and how do we apply it for open and closed tube
e=0.6r
for open tube: l+2e
for closed tube: l+e
potential difference of silicon diodes and germanium diodes
Silicon Diodes:- 0.7 V
Germanium Diodes :- 0.3 V
roots of this?
whats the lens formula for this type of lens
we can use this for different number of lens in a similar way
what kind of approach can be taken in these types of q
sub a=b=c and such valid substitution of the variables to make it easier
(a) II is more reactive than I.
(b) I is more reactive than II
(c) Both have same reactivity.
(d) None of these
B
since its harder to break D-D bonds
where would NO2 be attached?
meta position as CF3 is highly electron withdrawing grpq
what does germanium silver contaings?
Cu, Zn and Ni
NH3 is a strong/weak field ligand
strong field ligand
how are Ni2+ identified
The identification of Ni2+ is carried out by dimethyl glyoxime in the presence of NH2OH.
dimethyl glyoxime(DMG) is charged/neutral
neutral
n factor of oxalic acid
2
what kind of metla s can be used as electrodes
metals with low IE are used as electrodes
hydroformylation reaction?
In diatomic molecule the rotational energy at a given temperature obeys Maxwell’s distribution is
false/true
True
the formula for rotational energy of a molecule in KTG
R.E= f/2 Kb T
f—> the number of rotational degree of motion
monoatomic—-> 0
diatomic—–> 2
polyatomic—–> 3
In a ferromagnetic material, below the Curie
temperature, a domain is defined as
a macroscopic region with saturation
magnetisation
what to generally do if we have to find minimum value of a function
if nothing much workds out! go for AM>GM
newtons method for quadratic question where we have a10, a8 such huge numbers to be found in expressions
the graph of P.E. for Sn1 reaction is?
why is salicyclic acid very stable and why is COOH not on para position
becuase COOH on ortho posotion makes H bonds with the OH and hence forms a much more stable compound
t BuOna is what?
a bulky base used in elimination or sub and generally forms anti markovnikov product as its very bulky
where is bromine water used for practical organic chem?
bromine water is used to identify a double bond in a HC
if its the bromine water decolourised, there is a double bond in the compound
reactivity series
Li K Ba Sr Ca Na Mg Al Mn Zn Cr Fe Cd Co Ni Sn Pb H2 Cu Hg Ag Au Pt
basic strength order of amines if R=CH3
acidic strength is indirectly/directly proportional to O.S of elements
O.S. of the elements
for chloro,sulphur, nitrogen oxoacids
acidic order of oxoacids of P(H2PO3,H3PO2,H3PO4)
how to draw these types of graph
first, draw a normal graph! then while it’s increasing, within a given range! the max value will keep increasing! therefore we will keep the same graph while increasing but while decreasing the max vale within that range will be the earlier max value which was already attainted therefore we would keep the graph constant from there
between two masses, how much minimum energy to give to a mass to travel from one mass surface to the other !?
What’s the approach!?
apply energy conservation at the place where the force on the mass due to the big two masses is equal
and hence after that a little push, it will go to the other mass
the vitamins list
tangent of a circle formula
tangent of parabola
normal of parabola
normal of ellipse
tangents of ellipse
