Sodium nitroprusside is

The melting points of (i) BeCl\(_{2}\) (ii) \(\mathrm{CaCl}_{2}\) and (iii) \(\mathrm{HgCl}_{2}\) follows the order

In aluminium extraction by the Bayer process, alumina is extracted from bauxite by sodium hydroxide at high temperature and pressures :
\(\mathrm{Al}_2 \mathrm{O}_3(\mathrm{~s})+2 \mathrm{OH}^{-}(\mathrm{aq}) \rightarrow 2 \mathrm{Al}_2 \mathrm{O}_2(\mathrm{aq})+\mathrm{H}_2 \mathrm{O}(1)\)

Solid impurities such as \(\mathrm{Fe}_2 \mathrm{O}_3\) and \(\mathrm{SiO}_2\) are removed and then \(\mathrm{Al}(\mathrm{OH})_4^{-}\)is reprecipitated : \(2 \mathrm{Al}(\mathrm{OH})_4^{-} \rightarrow \mathrm{Al}_2 \mathrm{O}_3 \cdot 3 \mathrm{H}_2 \mathrm{O}(\mathrm{s})+2 \mathrm{OH}^{-}\)(aq) . In the industrial world :

The coagulating power of electrolytes having ions \(\mathrm{Na}^{+}, \mathrm{Al}^{3+}\) and \(\mathrm{Ba}^{2+}\) for \(\mathrm{As}_2 \mathrm{~S}_3\) sol increases in the order

Identify \([\mathrm{A}]\) and \([\mathrm{B}]\) in the following
\[
{ }_{89}^{227} \mathrm{Ac} \stackrel{-\beta}{\longrightarrow}[\mathrm{A}] \stackrel{-\alpha}{\longrightarrow}[\mathrm{B}] \stackrel{-\alpha}{\longrightarrow} \mathrm{Rn}
\]

Which hydrogen like species will have the same radius as that of \(1^{\text {st }}\) Bohr orbit of hydrogen atom?

Increasing order of solubility of AgCl in (i) \(\mathrm{H}_2 \mathrm{O}\), (ii) 1 M NaCl (aq.), (iii) \(1 \mathrm{M}\) \(\mathrm{CaCl}_2\) (aq.) and (iv) \(1 \mathrm{M}\) \(\mathrm{NaNO}_3\) (aq.) solution

The vectors are given by \(\dot{\mathbf{A}}=\hat{\mathbf{i}}+2 \hat{\mathbf{j}}+2 \hat{\mathbf{k}}\) and \(\mathbf{B}=3 \hat{\mathbf{i}}+6 \hat{\mathbf{j}}+2 \mathbf{k}\). Another vector \(\mathbf{C}\) has the same magnitude as \(\mathbf{B}\) but has the same direction as A. Then which of the following vectors represents C?

The sum of the infinite series \(1+\frac{1}{2 !}+\frac{1.3}{4 !}+\frac{1.3 .5}{6 !}+\ldots \ldots\). is

If \(a>0, b>0\) then the maximum area of the parallelogram whose three vertices are \(O(0,0), A(a \cos \theta, b \sin \theta)\) and \(\mathrm{B}(\mathrm{a} \cos \theta,-\mathrm{b} \sin \theta)\) is

To which of the following the angular velocity of the electron in the \(n\) -th Bohr orbit is proportional?

As shown in figure, a rectangular loop of length ' a' and width ' \(b\) ' and made of a conducting material of uniform crosssection is kept in a horizontal plane where a uniform magnetic field of intensity \(B\) is acting vertically downward. Resistance per unit length of the loop is \(\lambda \Omega / \mathrm{m}\). If the loop is pulled with uniform velocity ' \(v\) ' in horizontal direction, which of the following statement is / are true?

Paracetamol is