Which of the following statements are correct?
A. \(\text{CuI}_2\) is not known.
B. \(\text{Cu}_2\text{I}_2\) is known.
C. \(\text{Cu}^{2+}\) ion oxidises \(\text{I}^-\text{}\) to \(\text{I}_2\).
D. \(\text{Cu}^{2+}\) ion does not oxidise \(\text{I}^-\text{}\) to \(\text{I}_2\).

Identify the type of defect in the above solid. (The image for the 'above solid' is missing but question asks to identify defect in 'the above solid')

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 order of a reaction which does not exist is

The vapour pressures of chloroform, (\(\text{CHCl}_3\)) and dichloromethane (\(\text{CH}_2\text{Cl}_2\)) at 298 K are 400 mm Hg and 615 mm Hg,respectively. What is the mole fraction of \(\text{CHCl}_3\) in vapour phase in solution prepared by mixing 30 g of \(\text{CHCl}_3\) and 45 g of \(\text{CH}_2\text{Cl}_2\) ?

The transition metals generally form complex compounds due to
(A) Variable oxidation states
(B) High ionic charges
(C) Smaller size of metal ion
(D) Metallic conductivity
(E) Availability of d-orbitals
Choose the correct answer from the options given below :

Gabriel phthalimide synthesis method is used for the preparation of :

Friedel-Craft reaction as shown below is an example of

A p-n junction diode can be used :

The value of \(\int \tan ^2 x d x\) is :
where \(C\) is the constant of integration.

Identify the cells present in regions outside the seminiferous tubules

Select the correct statement.

A radioactive material with half life of 6.25 years undergoes beta decay. How much fraction of material is decayed after 25 years:

In the Cell reaction :
\(Mg ( s )+2 Ag ^{+}( aq ) \rightarrow Mg ^{2+}( aq )+2 Ag ( s )\)
\(E _{\text {cell }}^{\circ}=3.17 V\). By doubling the concentration of \(Mg ^{2+}, E _{\text {cell }}\) is :