In which of the following salts, only cationic hydrolysis is involved?

The oxidation state and covalency of \(\mathrm{Al}\) in \(\left[\mathrm{AlCl}\left(\mathrm{H}_2 \mathrm{O}\right)_5\right]^{2+}\) are respectively

Match the following:
\(\begin{array}{|c|c|c|}
\hline & \text { List - I } & & \text { List - II } \\
\hline \text{a)} & \text { Starch } & \text { i) } & \text { Shape selective catalyst } \\
\hline \text{b)} & \text { Cane sugar } & \text { ii) } & \text { Maltase } \\
\hline \text{c)} & \text { Zeolite } & \text { iii) } & \text { Diastase } \\
\hline \text{d)} & \text { Maltose to glucose } & \text { iv) } & \text { Invertase } \\
\hline & & \text { v) } & \text { Zymase } \\
\hline
\end{array}\)
The correct answer is:

The X formed in the following reaction sequence and its structural type are respectively

Which among the following possesses a \(s p\) carbon in its structure?

Calculate the energy associated with the second orbit of \(\mathrm{Li}^{+}\)and find it's radius?

Identify the reactions in which dichromate acts as an oxidising reagent.
I. \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+6 \mathrm{Fe}^{2+}+14 \mathrm{H}^{+} \longrightarrow 2 \mathrm{Cr}^{3+}+6 \mathrm{Fe}^{3+}+7 \mathrm{H}_2 \mathrm{O}\)
II. \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+2 \mathrm{OH}^{-} \longrightarrow 2 \mathrm{CrO}_4^{2-}+\mathrm{H}_2 \mathrm{O}\)
III. \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+6 \mathrm{I}^{-}+14 \mathrm{H}^{+} \longrightarrow 2 \mathrm{Cr}^{3+}+3 \mathrm{I}_2+7 \mathrm{H}_2 \mathrm{O}\)
IV. \(\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7+2 \mathrm{KCl} \longrightarrow \mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7+2 \mathrm{NaCl}\)

A body of mass \(M\) is dropped from a height \(h\) on a sand floor. If the body penetrates \(x \mathrm{~cm}\) into the sand, then the average resistance offered by the sand to the body is

A 10 L vessel contains 1 mole of an ideal gas with pressure of \(\mathrm{P}(\mathrm{atm})\) and temperature of \(\mathrm{T}(\mathrm{K})\). The vessel is divided into two equal parts. The pressure (in atm) and temperature (in K ) in each part is respectively

Three masses \(m, 2 m\) and \(3 m\) are arranged in two triangular configurations as shown in figure 1 and figure 2 . Work done by an external agent in changing, the configuration from figure 1 to figure 2 is

Consider the two following statements \(A\) and \(B\), and identify the correct choice given in the answers : \((A)\) Duddell's thermo galvanometer is suitable to measure direct current only. (B) Thermopile can measure temperature differences of the order of \(10^{-3}{ }^{\circ} \mathrm{C}\).

If \((-2, 6)\) is the image of the point \((4, 2)\) with respect to the line \(L = 0\), then \(L\) is equal to

The rank of the matrix $\left[\begin{array}{ccc}4& 2& (1-x)\\ 5& k& 1\\ 6& 3& (1+x)\end{array}\right]$ is $1,$ then