BITSAT 2023

Which of the following statements does not form a part of Bohr's model of hydrogen atom?

Glucose and mannose are related as

A certain compound gives negative test with ninhydrin and positive test with Benedict's solution, it is

In \(\mathrm{BrF}_3\) molecule, the lone pairs occupy equatorial positions to minimise

Which one of the following is/are linear structure?
I. \(\mathrm{I}_3^{-}\)
II. \(\mathrm{NO}_2^{-}\)
III. \(\mathrm{I}_3^{+}\)
IV. \(\mathrm{SO}_2\)
V. \(\mathrm{N}_3^{-}\)

Match the following columns.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal...

The correct statement with respect to the complexes \(\mathrm{Ni}(\mathrm{CO})_4\) and \([\mathrm{Ni}(\mathrm{CN})_4]^{2-}\) is

The complex showing a spin-only magnetic moment of \(2.82 \mathrm{~BM}\) is

The equilibrium constant of the reaction
\(A(s)+2 B^{+}(a q) \rightleftharpoons A^{2+}(a q)+2 B(s)\)
\(E_{\text {cell }}^{\circ}=0.0295 \mathrm{~V} \text { is } \quad\left[\frac{2.303 R T}{F}=0.059\right]\)

In electrophilic aromatic substitution reaction, the nitro group is meta-directing because it

The decreasing order of nucleophilicity among the following nucleophiles is

Anti-Markownikoff's addition of \(\mathrm{HBr}\) is observed in

Identify product \((Z)\) in the series, of reaction
\(\mathrm{CH}_2=\mathrm{CH}_2 \xrightarrow{\mathrm{HBr}} X \xrightarrow{a q . \mathrm{KOH}} Y \xrightarrow[\mathrm{I}_2 \text { excess }]{\mathrm{Na}_2 \mathrm{CO}_3} Z\)

In acetylene molecule between the carbon atoms there are

Which of the following acts as interstitial hydride?

Which of the following is added to remove permanent hardness of water?

The concentration of hydrogen ion in a sample of soft drink is \(3.8 \times 10^{-3} \mathrm{M}\). What is its \(\mathrm{pH}\) ?

If the ionic product of \(\mathrm{Ni}(\mathrm{OH})_2\) is \(1.9 \times 10^{-15}\), then the molar solubility of \(\mathrm{Ni}(\mathrm{OH})_2\) in \(1.0 \mathrm{~M} \mathrm{~NaOH}\) is

If two compounds have the same empirical formula but different molecular formulae, they must have

Sulphur does not exist as \(\mathrm{S}_2\) molecule because

Which of the following oxides is amphoteric in character?

Which of the following is cross-linked polymer?

Which one of the following decreasing orders of stability is correct?

A compound formed by elements A and B crystallises in the cubic structure where A atoms are at the corners of a cube and B atoms are at the face centre. The formula of the compound is :

If \(20 \mathrm{~g}\) of \(\mathrm{CaCO}_3\) is treated with \(100 \mathrm{~mL}\) of \(20 \%\) \(\mathrm{HCl}\) solution, the amount of \(\mathrm{CO}_2\) produced is

\(10 \mathrm{~g}\) each of \(\mathrm{CH}_4\) and \(\mathrm{O}_2\) are kept in cylinders of same volume under same temperature, give the pressure ratio of two gases

The volume-temperature graphs of a given mass of an ideal gas at constant pressures are shown below. What is the correct order of pressures?

The value of enthalpy change \((\Delta H)\) for the reaction \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}(l)+3 \mathrm{O}_2(\mathrm{~g}) \longrightarrow 2 \mathrm{CO}_2(\mathrm{~g})+ 3 \mathrm{H}_2 \mathrm{O}(l)\), at \(27^{\circ} \mathrm{C}\) i...

A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If \(\Delta H\) is the enthalpy change and \(\Delta E\) is the change in internal energy, then

The temperature of \(K\) at which \(\Delta G=0\), for a given reaction with \(\Delta H=-20.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(\Delta S=-50.0 \mathrm{~JK}^{-1} \mathrm{~mol}^{-1}\) is