List of top Questions asked in DUET

Number of a and $n$ bonds in $C _{6} H _{5} COOH$ are

Prorennin is secreted by

In which of the following animals $Hb$ is found dissolved in plasma?

Graph of input characteristic of common emitter amplifier is

Glenoid cavity is found in

Expand ELISA

Each immunoglobin has two heavy chains and two light chains, the antigen binding is present in

$8$ bits form

If $B_{H}=\frac{1}{\sqrt{3}} B_{V}$, find angle of dip. (where symbols have their usual meanings)

what is the Q-value of the reaction $p+{ }^{7} Li \rightarrow{ }^{4} He +{ }^{4} He$ The atomic masses of ${ }^{1} H ,{ }^{4} He$ and ${ }^{7} Li$ are $1.007825\, u , 4.002603\,u$ and $7.016004\, u$ respectively

Which of the following does not effect half-life of first order reaction?

Which of the following is true for rays coming from infinity?

A galvanometer has a resistance of 50$\Omega$. If a resistance of 1$\Omega$ is connected across its terminals, the total current flow through the galvanometer is [$I_g$ represents the maximum current that can be passed through the galvanometer]

A network of four capacitors of capacity equal to $C_{1}=C, C_{2}=2 C, C_{3}=3 C$ and $C_{4}=4 C$ are connected to a battery as shown in the figure. The ratio of the charges on $C_{2}$ and $C_{4}$ is.:

Two identical springs are connected in series and parallel as shown in the figure. If $ f_{s} $ and $ f_{p} $ are frequency of series and parallel arrangement what is $ \frac{f_{s}}{f_{p}} $ ?

What is dimensional formula of thermal conductivity?

Two copper wires of length $ l $ and $2 l $ have radii $r$ and $2r$ respectively. What is the ratio of their specific resistances?

Toluene by Etard reaction gives:

At high pressure van der Waals equation becomes :

Number of atoms in bcc :

Principle of $H$-bomb is:

$R - \underset{\overset{||}{O}}{C} - Cl + H_2 {->[Pd/BaSO_4][S]} RCHO$, the name of reaction is :

Reactivity order of following towards $ NaOE,\,EtOH $ :

Which has equilibrium constant as one?

How many ions will be furnished by $ CoCl_{3}\,.\,\,6NH_{3} $ ?