Recent questions tagged class12

To obtain a p-type semiconductor germanium is doped with

asked Jan 31, 2014 by meena.p

1 answer

$K_4[Fe(CN)_6]$ is a

asked Jan 31, 2014 by sreemathi.v

1 answer

To obtains p-type germanium semiconductor it must be doped with

asked Jan 31, 2014 by meena.p

1 answer

Potassium hexa chloro platinate(IV) is

asked Jan 31, 2014 by sreemathi.v

1 answer

Zener diode :

asked Jan 31, 2014 by meena.p

1 answer

Neutral complex among following

asked Jan 31, 2014 by sreemathi.v

1 answer

A Diode Laser

asked Jan 31, 2014 by meena.p

1 answer

The secondary valency of chromium in $[Cr(CN)_3]Cl_3$ is

asked Jan 31, 2014 by sreemathi.v

1 answer

The oxidation state of chromium in complex $[Cr(NH_3)_4Cl_2]Cl$

asked Jan 31, 2014 by sreemathi.v

1 answer

Which of the following exhibits purple colour in solution?

asked Jan 31, 2014 by sreemathi.v

1 answer

The metal present in chlorophyll

asked Jan 31, 2014 by sreemathi.v

1 answer

In metallurgy the metal used to displace silver pom its cyano complex

asked Jan 31, 2014 by sreemathi.v

1 answer

The number of moles of KI required to prepare are mole of $K_2[HgI_4]$

asked Jan 31, 2014 by sreemathi.v

1 answer

The ionisation isomerism is possible with

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?

asked Jan 31, 2014 by meena.p

1 answer

Which of the following is an ambident ligand

asked Jan 31, 2014 by sreemathi.v

1 answer

When a solid with a band gap has a donor level just below its empty energy band, its solid is

asked Jan 31, 2014 by meena.p

1 answer

Which of the following logic gate is an universal gate

asked Jan 31, 2014 by meena.p

1 answer

IUPAC name of $K_3[Fe(CN)_6]$ is

asked Jan 31, 2014 by sreemathi.v

1 answer

In Boolean Algebra what is value of $A.B+A.C.B$

asked Jan 31, 2014 by meena.p

1 answer

Hydrazinium ion is

asked Jan 31, 2014 by sreemathi.v

1 answer

Using law of Boolean Algebra the value of $A+(\bar {A}B)$

asked Jan 31, 2014 by meena.p

1 answer

The formula of "nitrosyl" group

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.

asked Jan 31, 2014 by meena.p

1 answer

The hybridisation of iron in $K_4[Fe(CN)_6]$

asked Jan 31, 2014 by sreemathi.v

1 answer

Transistor working as an amplifier operates in its active region of characteristic only when

asked Jan 31, 2014 by meena.p

1 answer

The primary valency of 'Fe' in complex $K_4[Fe(CN)_6]$ is

asked Jan 31, 2014 by sreemathi.v

1 answer

The oxidation state of iron in $[Fe(CN)_6]^{3-}$

asked Jan 31, 2014 by sreemathi.v

1 answer

By using the properties of definite integrals,evaluate the integral $ \int\limits_{-10}^{10}\mid x+2 \mid\;dx$

asked Jan 31, 2014 by balaji

1 answer

The donor atoms in ethylenediamine

asked Jan 31, 2014 by sreemathi.v

1 answer

The charge on cobalt in $[CO(CN)_6]^{3-}$ is

asked Jan 31, 2014 by sreemathi.v

1 answer

Ligand in a metal carbonyl complex

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.

asked Jan 31, 2014 by yamini.v

1 answer

Carnalite is an example of

asked Jan 31, 2014 by sreemathi.v

1 answer

Platinum, palladium, iridium etc., are called noble metals because

asked Jan 31, 2014 by sreemathi.v

1 answer

In the circuit given below if the output $D=1$ the input must be

asked Jan 31, 2014 by meena.p

1 answer

which of the following represents the system of logic gates given below.

asked Jan 31, 2014 by meena.p

1 answer

If the 0 and 1 are inputs for a NAND gate what would be the output?

asked Jan 30, 2014 by meena.p

1 answer

The following circuit can be reduced to what type of a gate?

asked Jan 30, 2014 by meena.p

1 answer

If there are n capacitors in parallel connected to V volt source , then energy stored is equal to

asked Jan 30, 2014 by yamini.v

1 answer

If $x,y,z$ are all distinct and $\begin{vmatrix}x&x^2&1+x^3\\y&y^2&1+y^3\\z&z^2&1+z^3\end{vmatrix}=0$ then the value of $\;\large\frac{-1}{xyz}$ is

asked Jan 30, 2014 by balaji.thirumalai

1 answer

The NOR gate can be represented by which venn diagram ?

asked Jan 30, 2014 by meena.p

1 answer

Which of the statement about NOT gate is true?

asked Jan 30, 2014 by meena.p

1 answer

A charge Q is placed at the corner of a cube electric flux through the cube is

asked Jan 30, 2014 by yamini.v

1 answer

In photography sodium thiosulphate is used as

asked Jan 30, 2014 by sreemathi.v

1 answer

The following logic circuit has output

asked Jan 30, 2014 by meena.p

1 answer

If a charge is shifted from a low potential region to high potential region , the electric potential energy

asked Jan 30, 2014 by yamini.v

1 answer

Which of the following are the causes of Lanthanide contraction?

asked Jan 30, 2014 by sreemathi.v

1 answer

An electric dipole of moment $\;\overrightarrow{P}\;$ is lying along a uniform electric field $\;\overrightarrow{E}\;$ The work done in relating the dipole by $\;90^{0}\;is$

asked Jan 30, 2014 by yamini.v

1 answer

One of the important use of ferrous sulphate is in the

asked Jan 30, 2014 by sreemathi.v

1 answer

Ask Questions, Get Answers