Carbon can reduce ferric oxide to iron at a temperature above \(983 \mathrm{~K}\) because

The spin only magnetic moment of \(\mathrm{Mn}^{4+}\) ion is nearly

The electronic configuration of \(\mathrm{Cu}^{2+}\) ion is

\[
3 \mathrm{ClO}_{3}^{-}(a q) \rightarrow \mathrm{ClO}^{-}(a q)+2 \mathrm{Cl}^{-}(a q)
\]
is an example of

Match List-I with List-II for the following reaction pattern
Glucose \(\xrightarrow{\text { Reagent }}\) Product \(\longrightarrow\) Structural prediction
\begin{array}{|l|l|l|l|}\hline & \text{List - I (Reagents)} & & \text{List-II (Structural prediction)} \\\hline \text{a}. & \text{Acetic anhydride} & \text{(i)} & \text{Glucose has an aldehyde group} \\\hline \text{b.} & \text{Bromine water} & \text{(ii)} & \text{Glucose has a straight chain of six carbon atoms} \\\hline \text{c.} & \text{Hydroiodic acid} & \text{(iii)} & \text{Glucose has five hydroxyl group} \\\hline \text{d.} & \text{Hydrogen cyanide} & \text{(iv)} & \text{Glucose has a carbonyl group} \\\hline\end{array}

Choose the correct answer from the options given below.

Which of the following is an example of homogeneous catalysis?

The rate constant of a reaction is given by \(k=P Z e^{-E_{a} / R T}\) under standard notation. In order to speed up the reaction, which of the following factors has to be decreased?

The following factors indicate improved reproductive health of the society. Choose the correct option.
A. Better detection and cure of disease
B. Better post-natal care
C. Medically assisted deliveries
D. Increased MMR
Select the code for the correct answer from the options given below.

Identify the odd one among the following disorders.

In the Young's double slit experiment, the intensity of light passing through each of
the two double slits is \(2 \times 10^{-2} \mathrm{Wm}^{-2}\). The screen-slit distance is very large in comparison with slit-slit distance. The fringe width is \(\beta\). The distance between the central maximum and a point \(P\) on the screen is \(x=\frac{\beta}{3}\). Then, the total light intensity at the point is

A body has a charge of \(-3.2 \mu \mathrm{C}\). The number of excess electrons will be

A galvanometer of resistance \(50 \Omega\) is connected to a battery \(3 \mathrm{~V}\) along with a resistance \(2950 \Omega\) in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be

The coordinates of foot of the perpendicular drawn from the origin to the plane \(2 x-3 y+4 z=29\) are