A galvanic cell behaves as electrolytic cell when?

Mercury cell used in hearing aid devices contains anode comprising of

Which of the following statement(s) is/are correct
A. A plot of \(\log \frac{x}{m}\) vs \(\log p\) is linear.
B. A plot of \(\log [x]\) vs time is linear for a first order reaction \(x \rightarrow p\).
C. A plot of vapour pressure vs temperature is linear at constant volume.
D. A plot of \(\log p\) vs \(\frac{1}{T}\) is linear at constant temperature.
E. A plot of \(\frac{1}{\text { Concentration of the reactant }}\) vs time gives a straight line for a second order reaction.
Choose the correct answer from the options given below :

Answer the question on the basis of passage given below :
A colloid is a heterogeneous system in which a substance is dispersed (dispersed phase) as fine particles in another substance called dispersion medium.
Their particle size is intermediate between that of pure solutions (less than 1 nm ) and suspensions (greater than 1000 nm ).
They are known for interesting properties such as enormous surface area, Tyndall effect, Brownian motion etc.
They are widely used in industries and day to day life.
Some prominent uses of colloids are those in smoke precipitators, purification of water, medicines, cleansers etc.
Stability of a colloid is intermediate between that of a solution and suspension. This stability can be attributed to _____________
A. Presence of charge on the particles of dispersed phase.
B. Prolonged mechanical stirring.
C. Solvation by the dispersion medium.
D. Brownian Motion.
E. Dialysis
Choose the correct answer from the options given below :

Anisole on heating with concentrated HI gives:

Which of the following will not be sweet in taste?

Read the Passage carefully and answer the Questions
Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered. The factors such as concentration, temperature, pressure and catalyst affect the rate of a reaction.
The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate \(=k[A]^x[B]^y\)
Here \(k\) is the rate constant
\(x+y\) gives the overall order of a reaction, whereas \(x\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
The unit of rate constant for first order reaction is

The projection of the vector \(\hat{i}+\hat{j}+\hat{k}\) on the vector \(\hat{j}\) is:

If \(y=(x+1)\left(x^2+1\right)\left(x^4+1\right)\left(x^8+1\right)\) then \(\frac{d y}{d x}\) at \(x = -1\) is

The parturition is induced by a complex neuroendocrine mechanism. Which of the following hormone is not involved in this process?

The area bounded by the curve \(y=2 x-x^2\) and the straight line \(y=-x\) is :

Aphids and mosquitoes can be controlled by, respectively:

Let \(A=\left[\begin{array}{ccc}1 & \sin \theta & 1 \\ -\sin \theta & 1 & \sin \theta \\ -1 & -\sin \theta & 1\end{array}\right]\),where \(0 \leq \theta \leq 2 \pi\).
Then \(\operatorname{det}(A)\) lies in the interval :