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A reduction in atomic size with increase in atomic number is a characterstic of elements of
jeemain
chemistry
class12
coordination-compounds
unit9
q27
medium
asked
Jan 31, 2014
by
sreemathi.v
1
answer
When forward bias is applied to a p-n junction.
jeemain
physics
class12
unit19
ch14
q98
easy
semiconductor-electronics
concepts
pn-junction
asked
Jan 31, 2014
by
meena.p
1
answer
Functions of rectifier is
jeemain
physics
class12
unit19
ch14
q88
easy
asked
Jan 31, 2014
by
meena.p
1
answer
In the coordination compound,$K_4[Ni(CN)_4]$ the oxidation state of nickel is
jeemain
chemistry
class12
coordination-compounds
unit9
q26
medium
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The hybridisation of Fe in $[Fe(H_2O)_5NO]SO_4$ is
jeemain
chemistry
class12
coordination-compounds
unit9
q25
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The graph given below represents the I-V characteristics of a zener diode. Which part of the curve is relevant for operation as voltage regulator?
jeemain
physics
class12
unit19
ch14
q96
easy
junction-diodes
semiconductor-electronics
asked
Jan 31, 2014
by
meena.p
1
answer
The following complex representation violates IUPAC rule
jeemain
chemistry
class12
coordination-compounds
unit9
q24
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
A complex in which central atom carries zero oxidation state is
jeemain
chemistry
class12
coordination-compounds
unit9
q23
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
In extrinsic semiconductors
jeemain
physics
class12
unit19
ch14
q95
easy
asked
Jan 31, 2014
by
meena.p
1
answer
The effective atomic number of Cr in $[Cr(NH_3)_6]Cl_3$ is
jeemain
chemistry
class12
coordination-compounds
unit9
q22
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
To obtain a p-type semiconductor germanium is doped with
jeemain
physics
class12
unit19
ch14
q94
easy
asked
Jan 31, 2014
by
meena.p
1
answer
$K_4[Fe(CN)_6]$ is a
jeemain
chemistry
class12
coordination-compounds
unit9
q21
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
To obtains p-type germanium semiconductor it must be doped with
jeemain
physics
class12
unit19
ch14
q93
easy
asked
Jan 31, 2014
by
meena.p
1
answer
Potassium hexa chloro platinate(IV) is
jeemain
chemistry
class12
coordination-compounds
unit9
q20
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Zener diode :
jeemain
physics
class12
unit19
ch14
q92
easy
asked
Jan 31, 2014
by
meena.p
1
answer
Atomic radius is of the order of $10^{-8} cm$ and nuclear radius is of the order of $10^{-13}$ cm. calculate what fraction of atom is occupied by nucleus?
sat
chemistry
atomic-structure
jeemain
physical-chemistry
class11
unit2
bhor's-model
medium
q155
asked
Jan 31, 2014
by
sharmaaparna1
1
answer
Neutral complex among following
jeemain
chemistry
class12
coordination-compounds
unit9
q19
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
A Diode Laser
jeemain
physics
class12
unit19
ch14
q91
easy
semiconductor-electronics
concepts
diode
asked
Jan 31, 2014
by
meena.p
1
answer
The secondary valency of chromium in $[Cr(CN)_3]Cl_3$ is
jeemain
chemistry
class12
coordination-compounds
unit9
q18
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The oxidation state of chromium in complex $[Cr(NH_3)_4Cl_2]Cl$
jeemain
chemistry
class12
coordination-compounds
unit9
q17
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Find out the energy of H atom in first excitation state. The value of permitivity factor $4\pi E_{\large\circ} = 1.11264\times10^{-10} C^2N^{-1}m{-2}$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
bhor's-model
medium
q154
asked
Jan 31, 2014
by
sharmaaparna1
1
answer
Which of the following exhibits purple colour in solution?
jeemain
chemistry
class12
coordination-compounds
unit9
q16
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The metal present in chlorophyll
jeemain
chemistry
class12
coordination-compounds
unit9
q15
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
What is the principal quantum no. of H-atom Orbital if the electron energy is -3.4 eV ? also report the angular momentum of electron
sat
chemistry
atomic-structure
jeemain
physical-chemistry
class11
unit1
bhor's-model
medium
q153
asked
Jan 31, 2014
by
sharmaaparna1
1
answer
In metallurgy the metal used to displace silver pom its cyano complex
jeemain
chemistry
class12
coordination-compounds
unit9
q14
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The number of moles of KI required to prepare are mole of $K_2[HgI_4]$
jeemain
chemistry
class12
coordination-compounds
unit9
q13
difficult
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The ionisation isomerism is possible with
jeemain
chemistry
class12
coordination-compounds
unit9
q12
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
To make a full wave rectifier using these four diodes, the ac input should be applied across what?
jeemain
physics
class12
unit19
ch14
q90
junction-diodes
semiconductor-electronics
easy
asked
Jan 31, 2014
by
meena.p
1
answer
Which of the following is an ambident ligand
jeemain
chemistry
class12
coordination-compounds
unit9
q11
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
What hydrogen like ion has the wavelength difference between the first lines of Balmer and Lyman series equal to 59.3 nm? $R_H = 109678 cm^{-1}$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
bhor's-model
difficult
q152
asked
Jan 31, 2014
by
sharmaaparna1
1
answer
When a solid with a band gap has a donor level just below its empty energy band, its solid is
jeemain
physics
class12
unit19
ch14
q89
easy
semiconductor-electronics
concepts
asked
Jan 31, 2014
by
meena.p
1
answer
Which of the following logic gate is an universal gate
jeemain
physics
class12
unit19
ch14
q88
easy
logic-gates
semiconductor-electronics
concepts
asked
Jan 31, 2014
by
meena.p
1
answer
IUPAC name of $K_3[Fe(CN)_6]$ is
jeemain
chemistry
class12
coordination-compounds
unit9
q10
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
In Boolean Algebra what is value of $A.B+A.C.B$
jeemain
physics
class12
unit19
ch14
q87
easy
logic-gates
semiconductor-electronics
asked
Jan 31, 2014
by
meena.p
1
answer
Hydrazinium ion is
jeemain
chemistry
class12
coordination-compounds
unit9
q9
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Using law of Boolean Algebra the value of $A+(\bar {A}B)$
jeemain
physics
class12
unit19
ch14
q86
easy
logic-gates
semiconductor-electronics
concepts
asked
Jan 31, 2014
by
meena.p
1
answer
The formula of "nitrosyl" group
jeemain
chemistry
class12
coordination-compounds
unit9
q8
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
In half wave rectifier if the D.C component at output is $\large\frac{10}{\pi} $$V$ What is the peak value of sinusoidal input signal.
jeemain
physics
class12
unit19
ch14
q85
sec-a
easy
junction-diodes
semiconductor-electronics
asked
Jan 31, 2014
by
meena.p
1
answer
The hybridisation of iron in $K_4[Fe(CN)_6]$
jeemain
chemistry
class12
coordination-compounds
unit9
q7
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Transistor working as an amplifier operates in its active region of characteristic only when
jeemain
physics
class12
ch14
q84
easy
semiconductor-electronics
concepts
asked
Jan 31, 2014
by
meena.p
1
answer
The primary valency of 'Fe' in complex $K_4[Fe(CN)_6]$ is
jeemain
chemistry
class12
coordination-compounds
unit9
q6
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The oxidation state of iron in $[Fe(CN)_6]^{3-}$
jeemain
chemistry
class12
coordination-compounds
unit9
q5
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The donor atoms in ethylenediamine
jeemain
chemistry
class12
coordination-compounds
unit9
q4
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
The charge on cobalt in $[CO(CN)_6]^{3-}$ is
jeemain
chemistry
class12
coordination-compounds
unit9
q3
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Ligand in a metal carbonyl complex
jeemain
chemistry
class12
coordination-compounds
unit9
q2
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Electric potential is given by $\;V=2x^2\;$ Find the electric field at $\;(1 ,0 ,2)\;$ in Volt/metre.
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatic-potential
easy
asked
Jan 31, 2014
by
yamini.v
1
answer
Carnalite is an example of
jeemain
chemistry
class12
coordination-compounds
unit9
q1
easy
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Platinum, palladium, iridium etc., are called noble metals because
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
easy
general-properties
basics
asked
Jan 31, 2014
by
sreemathi.v
1
answer
In the circuit given below if the output $D=1$ the input must be
jeemain
physics
class12
unit19
ch14
q83
medium
logic-gates
semiconductor-electronics
asked
Jan 31, 2014
by
meena.p
1
answer
which of the following represents the system of logic gates given below.
jeemain
physics
class12
unit19
ch14
q82
medium
logic-gates
semiconductor-electronics
asked
Jan 31, 2014
by
meena.p
1
answer
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