Hemoglobin contains \(0.34 \%\) of iron by mass. The number of \(Fe\) atoms in \(3.3 g\) of hemoglobin is.(Given : Atomic mass of \(Fe\) is \(56\,u , N _{ A }\) in \(6.022\) \(\left.\times 10^{23} mol ^{-1}\right)\)

Given below are two statements :
Statement (I) : An element in the extreme left of the periodic table forms acidic oxides.
Statement (II) : Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table.
In the light of the above statements, choose the correct answer from the options given below :

The spin-only magnetic moment value of \(\mathrm{M}^{\mathrm{n+-}}\) ion formed among \(\mathrm{Ni}, \mathrm{Zn} \mathrm{Mn}\) and Cu that has the least enthalpy of atomisation is ________. (in nearest integer)
Here n is equal to the number of diamagnetic complexes among \(\mathrm{K}_2\left[\mathrm{NiCl}_4\right],\left[\mathrm{Zn}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_2\),
\(\mathrm{K}_3\left[\mathrm{Mn}(\mathrm{CN})_6\right] \text { and }\left[\mathrm{Cu}\left(\mathrm{PPh}_3\right)_3 \mathrm{I}\right]\)

Total number of alkali insoluble solid sulphonamides obtained by reaction of given amines with Hinsberg's reagent is __________
Aniline, N-Methylaniline, Methanamine,
N, N-Dimethylmethanamine,
N-Methyl methanamine, Phenylmethanamine,
N-propylaniline, N-phenylaniline,
N, N-Dimethylaniline, Allyl amine,
Isopropyl amine

Consider the following reaction occurring in the blast furnace:
\(\mathrm{Fe}_3 \mathrm{O}_{4(\mathrm{~s})}+4 \mathrm{CO}_{(\mathrm{g})} \rightarrow 3 \mathrm{Fe}_{(\mathrm{l})}+4 \mathrm{CO}_{2(\mathrm{~g})}\)
' \(x\) ' kg of iron is produced when \(2.32 \times 10^3 \mathrm{~kg} \mathrm{Fe}_3 \mathrm{O}_4\) and \(2.8 \times 10^2 \mathrm{~kg} \mathrm{CO}\) are brought together in the furnace. The value of ' \(x\) ' is _____. (nearest integer)
Given:
molar mass of \(\mathrm{Fe}_3 \mathrm{O}_4=232 \mathrm{~g} \mathrm{~mol}^{-1}\)
molar mass of \(\mathrm{CO}=28 \mathrm{~g} \mathrm{~mol}^{-1}\)
molar mass of \(\left.\mathrm{Fe}=56 \mathrm{~g} \mathrm{~mol}^{-1}\right\}\)

\(  {C{H_3} - C{H_2} - \overset{\overset{\LARGE{OH}}{|}}{\underset{\large {Ph}}{\underset{|}{C}}} - C{H_3}} \) can not be prepared by

The number of hydrogen bonded water molecule(s) associated with stoichiometry \(\mathrm{CuSO}_{4} .5 \mathrm{H}_{2} \mathrm{O}\) is .... .

Given below are two statements: Statement \(I :\) In a diatomic molecule, the rotational energy at a given temperature obeys Maxwell's distribution. Statement \(II :\) In a diatomic molecule, the rotational energy at a given temperature equals the translational kinetic energy for each molecule. In the light of the above statements, choose the correct answer from the options given below:

Tischenko reaction is a modification of

For the reaction \(A ( g ) \rightleftharpoons B ( g )\) at \(495\, K\) \(\Delta_{ I } G ^{\circ}=-9.478\, kJ\, mol ^{-1}\) If we start the reaction in a closed container at \(495\, K\) with \(22\) millimoles of \(A ,\) the amount of \(B\) is the equilibrium mixture is millimoles .............. (Round off to the Nearest Integer). \(\left[ R =8.314 J mol ^{-1} K ^{-1} ; \ell n 10=2.303\right]\)

When an air bubble of radius \(r\) rises from the bottom to the surface of a lake, its radius becomes \(\frac{{5r}}{4}\).Taking the atmospheric pressure to be equal to \(10\,m\) height of water column, the depth of the lake would approximately be ....... \(m\) (ignore the surface tension and the effect of temperature)

The sum of the \(3^{rd}\) and the \(4^{th}\) terms of a \(G.P.\) is \(60\) and the product of its first three terms is \(1000\). If the first term of this \(G.P.\) is positive, then its \(7^{th}\) term is

Given below are two statements :
Statement I : One mole of propyne reacts with excess of sodium to liberate half a mole of \(\mathrm{H}_2\) gas.
Statement II : Four g of propyne reacts with \(\mathrm{NaNH}_2\) to liberate \(\mathrm{NH}_3\) gas which occupies 224 mL at STP.
In the light of the above statements, choose the most appropriate answer from the options given below: