The type of hybridisation and number of lone pair\((s)\) of electrons of \(Xe\) in \(XeOF_4\) respectively are

For the reaction \(C _{2} H _{6} \rightarrow C _{2} H _{4}+ H _{2}\) the reaction enthalpy \(\Delta_{ r } H =...........{ kJ\, mol ^{-1}}\). (Round off to the Nearest Integer). [Given : Bond enthalpies in \(kJ\) \(mol\) \(^{-1}:C-C : 347, C = C : 611 ; C - H : 414, H - H : 436]\)

Choose the incorrect formula out of the four compounds for an element \(X\) below

The metals that are employed in the battery industries are _______. \(A\). \(\mathrm{Fe}\)   \(B\). \(\mathrm{Mn}\)   \(C\). \(\mathrm{Ni}\)   \(D\). \(\mathrm{Cr}\)   \(E\). \(\mathrm{Cd}\) Choose the correct answer from the options given below:

Given below are two statements:
Statement-\(I\): Since fluorine is more electronegative than nitrogen, the net dipole moment of \(\mathrm{NF}_3\) is greater than \(\mathrm{NH}_3\).
Statement-\(II\): In \(\mathrm{NH}_3\), the orbital dipole due to lone pair and the dipole moment of \(\mathrm{NH}\) bonds are in opposite direction, but in \(\mathrm{NF}_3\) the orbital dipole due to lone pair and dipole moments of \(N-F\) bonds are in same direction.
In the light of the above statements. Choose the most appropriate from the options given below.

\(25\, mL\) of the given \(HCl\) solution requires \(30\, mL\) of \(0.1\, M\) sodium carbonate solution. What is the volume of this \(HCl\) solution required to titrate \(30\, mL\) of \(0.2\, M\) aqueous \(NaOH\) solution? .............. \(\mathrm{mL}\)

Among the statements \((a)-(d)\), the incorrect ones are \((a)\) Octahedral \(Co(III)\) complexes with strong field ligands have very high magnetic moments \((b)\) When \(\Delta_{0}< P\), the \(d-\)electron configuration of \(Co(III)\) in an octahedral complex is \(t_{\text {eg }}^{4} e_{g}^{2}\) \((c)\) Wavelength of light absorbed by \(\left[\mathrm{Co}(\mathrm{en})_{3}\right]^{3+}\) is lower than that of \(\left[\mathrm{CoF}_{6}\right]^{3-}\) \((d)\) If the \(\Delta_{0}\) for an octahedral complex of \(\mathrm{Co}(\mathrm{III})\) is \(18,000 \;\mathrm{cm}^{-1},\) the \(\Delta_{\mathrm{t}}\) for its tetrahedral complex with the same ligand will be \(16,000\;\mathrm{cm}^{-1}\)

Find the truth table for the function \(Y\) and \(A\) and \(B\) represented in the following figure.

The effect of addition of helium gas to the following reaction in equilibrium state, is : \(PCI _5( g ) \rightleftharpoons PCl _3( g )+ Cl _2( g )\)

The normal  to the curve \(y\left( {x - 2} \right)\left( {x - 3} \right) = x + 6\) at the point where the curve intersects the \(y - \)axis passes through the point :

A cubical block of density \(\rho_{ b }=600 kg / m ^3\) floats in a liquid of density \(\rho_{ e }=900 kg / m ^3\). If the height of block is \(H=8.0 cm\) then height of the submerged part is _________ cm .

Find out the statements which are not true.
A. Resonating structure with more number of covalent bonds and lesser charge separation are more stable.
B. In electromeric effect, an unsaturated system shows + E effect with nucleophile and - E effect with electrophile.
C. Inductive effect is responsible for high melting point, boiling point and dipole moment of polar compounds.
D. The greater the number of alkyl groups attached to the doubly bonded carbon atoms, higher is the heat of hydrogenation.
E. Stability of carbanion increases with the increase in s-character of the carbon carrying the negative charge.
Choose the correct answer from the options given below.

The number of electrons present in all the completely filled subshells having \(\mathrm{n}=4\) and \(\mathrm{s}=+\frac{1}{2}\) is _______. (Where \(\mathrm{n}=\) principal quantum number and \(\mathrm{s}=\) spin quantum number)