New Concepts/Shortcuts 6

Question 1

acidic order of HClO,HClO2,HClO3,HClO4

Answer 1

Question 2

oxidizing power is directly or inversely related to O.S

Answer 2

directly

Question 3

what are the effects of repulsive and attractive forces at boyle’s temperature?

Answer 3

at boyle’s temperature the effects of the repulsive and attractive forces offset each other

Question 4

galvanometer to voltmeter formula

Answer 4

Question 5

how much energy does a single electron of eg orbital have?

Answer 5

0.6 delta

Question 6

multimeter concepts

Answer 6

Question 7

SiO2 reaction with NaOH

Answer 7

Question 8

susceptibility formula

Answer 8

Question 9

hysterisis graph of steel and soft iron core

Answer 9

Question 10

what angle of declination

Answer 10

Question 11

the compass in the horizontal plane directs itself in?

Answer 11

Bh cos theta and it is in magnetic meridian

Question 12

Answer 12

4

Question 13

as the size of halogen increases from Cl to I

the tendency for back donation decreases/increases

Answer 13

decreases

Question 14

charge induced on dielectric formula for charge and surface charge density

Answer 14

Question 14

+4 state of cerium is known in?

Answer 14

solution

Question 15

red light differs from blue light as they have _______ frequencies and ______ wavelengths

Answer 15

different,different

Question 16

why does Mn3+ is oxidising agent whereas Cr2+ is reducing agent where both have d4 config

Answer 16

for Cr losing an electron ois much more feasible than gaing one electron

Question 17

which is more stable for cerium? +3 or +4

Answer 17

+3

Question 17

which is more stable for cerium? +3 or +4

Answer 17

+3

Question 18

which kind of geometric isomers is never optical active

Answer 18

trans isomers are never optically active

Question 19

Answer 19

Cu2O

Question 20

preparation of Bakelite process via

Answer 20

electrophilic sub and dehydration

Question 21

claisen self condensation occurs only when _____

Answer 21

there is an Alpha H

Question 22

terminal alkynes give ammonical Cu2Cl2 test

true or false

Answer 22

true

Question 23

in compound pendulum

the COM lies on the line of____

Answer 23

hinge

Question 24

displacement current and main current in circuit is same

true or false

Answer 24

true

Question 25

intensity formula with speed of light and electric field

Answer 25

Question 26

which kind of solvents support SN1 reaction

Answer 26

protic solvents(H2O,HCOOH)

Question 27

which kind of solvents support SN2 reaction

Answer 27

aprotic solvents(DMSO,DMF)

Question 28

Ag2O with aldehyde

Answer 28

Question 29

accurate reading of resistance in meter bridge is given when _______

Answer 29

the jockey is at the midpoint

Question 30

the value of permittivity of free space

Answer 30

Question 30

electric field due to charged arc

Answer 30

Question 31

electric field due to nonuniform charge distribution

Answer 31

Question 32

self energy of hollow and solif sphere?

Answer 32

Question 33

electrostatic potential due to ring and shell and solid sphere

Answer 33

Question 34

electric field due to dipole at axial point

Answer 34

Question 35

equation of tangents in ellipse in parametric form and slope form and shortcut

Answer 35

Question 36

equation of normal in ellipse in parametric,slope and shortcut

Answer 36

Question 37

equation of tangents of hyperbola

Answer 37