The magnetic moment of a divalent ion in aqueous solution if the atomic number of metal is 25 will be

Denatured alcohol is

0.60 g of urea is dissolved in 360 g of water at room temperature. The vapour pressure of pure water is 35 mm of Hg , the lowering of vapour pressure at this temperature is:
[Molar mass of urea is \(60 \mathrm{~g} \mathrm{~mol}^{-1}\) ]

Benzoin is

Which one of the following structures in Column I does not have the correct IUPAC name as given in Column II.
\(\begin{array}{|c|l|l|} \hline \text { S.No. } & \text { Structure } & \text { IUPAC name. } \\ \hline \text { A } & {\left[\mathrm{CoBr} r_2(\mathrm{en})_2\right] \mathrm{Cl}} & \text { Dibromidodi-( ethan-1, 2 - diamine)cobalt (III) chloride } \\ \hline \text { B } & \mathrm{Na}\left[\mathrm{PtBrCl}\left(\mathrm{NO}_2\right)\left(\mathrm{NH}_3\right)\right] & \text { Sodium amminebromidochloridonitrito- N- palatinate(II) } \\ \hline \text { C } & {\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_2\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}\right] \mathrm{SO}_4} & \text { Tetraamminediaquachloridochromium (III) sulphate. } \\ \hline \text { D } & {\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4\right]\left[\mathrm{PtCl}_4\right]} & \text { Tetraammineplatinum (II) tetrachloridoplatinate (II) } \\ \hline \end{array}\)

Which one of the following is a true statement with reference to reaction between 2- Bromo-2-methylpropane and aqueous KOH ?

The mole fraction of dioxygen in a neon-dioxygen mixture is \(0.18\). If the total pressure of the mixture is 25 bar, the partial pressure of neon in the mixture would be

Pick out the incorrect statement(s) from the following.
1. Glucose exists in two different crystalline forms, \(\alpha\)-D-glucose and \(\beta\)-D-glucose.
2. \(\alpha\)-D-glucose and \(\beta\)-D-glucose are anomers.
3. \(\alpha\)-D-glucose and \(\beta\)-D-glucose are enantiomers.
4. Cellulose is a straight chain polysaccharide made of only \(\beta\)-D-glucose units.
5. Starch is a mixture of amylase and amylopectin, both contain unbranched chain of \(\alpha\)-D-glucose units.

Identify the incorrect statement among the following.

A TV tower has a height \(72 \mathrm{~m}\). The maximum distance upto which TV transmission can be received is (Take, radius of the earth as \(\left.6.4 \times 10^6 \mathrm{~m}\right)\)

Let P be a point on the line \(L_1: \dfrac{x-2}{2} = y + 1 = \dfrac{z-1}{2}\) such that its distance from the point \(A(2 , -1 , 1)\) is 6 units.
Given that \(x\)-coordinate of P is greater than 2,
Find the coordinates of point Q on the line \(L_2: x - 1 = \dfrac{y-2}{2} = \dfrac{z-2}{2}\) such that Q is the closest point to P.

If \(150 \mathrm{~J}\) of heat is added to a system and the work done by the system is \(110 \mathrm{~J}\), then change in internal energy will be

Potential energy of 2 charge \(10 \mathrm{nC}\) each separated by a distance of \(0.09 \mathrm{~m}\) in air is