BITSAT 2020

The final product of the following reaction is/are

Compound C is

Ionisation energy of H-atom is 13.6 eV. The wavelengths of the spectral line emitted when an electron in Be3+ comes them 5th energy level to 2nd energy level is

If the quantum number I could have the value 'n' also then, Sc(21) would have electronic configuration as (other rules strictly followed)

Which of the following statement is incorrect?

Match the following columns:

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The correct order of pseudohalide, polyhalide and interhalogen is

1.1 mole of A mixed with 2.2 moles of B and the mixture is kept in a 1 L flask and the equilibrium, A + 2B \(\rightleftharpoons\) 2C + D is reached. If at equilibrium 0.2 mole of C is formed then the value of Kc will be

Sulphuric acid is a dibasic acid. It ionises in two stages and hence has two dissociation constants Ka1 and Ka2. Which of the following is the correct observation regarding Ka1 and Ka2 ?

A volume of 50.00 mL of a weak acid of unknown concentration is titrated with 0.10 M solution of NaOH. The equivalence point is reached after 39.30 mL of NaOH solution has been added. At the half equivalence point (19.65 mL) the pH is 4.85....

A(g) \(\to\) P(g) + Q(g) + R(g),
Follow first order kinetics with a half-life of 69.3 s at 500\(^\circ\)C. Starting from the gas 'A' an container at 500\(^\circ\)C and at a pressure of 0.4 atm, the total pressure of the system after 230 s w...

Which of the following gives paracetamol on acetylation?

In a set of reactions, m-bromobenzoic acid gives a product D. Identify the product D:

An organic base C8H11N(X) reacts with nitrous acid at 0\(^\circ\)C to give a clear solution. Heating the solution with KCN and cuprous cyanide followed by continued heating with conc. HCl gives a crystalline solid. Heating this solid with a...

According to IUPAC nomenclature sodium nitroprusside is named as

In qualitative analysis when H2S is passed through an aqueous solution of salt acidified with dilute HCl, a black ppt. is obtained. On boiling the precipitate with dil. HNO3, it forms a solution of blue colour. Addition of excess of aqueous...

Identify the incorrect statement regarding the complex [Cr(NH3)6]Cl3.

Which of the following is not a mixed pair of oxides?

A solution of copper sulphate is electrolyzed between copper electrodes by a current of 10.0A passing for one hour. Which of the following statements is correct regarding the changes occur at the electrodes and in the solution?

The process of 'eutrophication' is due to the

Most acidic hydrogen is present in

1-phenyl-1, 3-dibromopropane on treatment with alc. KOH givens diastereomeric mixture in which compound (A) is major product. (A) gives the following reaction
(A) \(\buildrel {AlC{l_3}/\Delta } \over \longrightarrow\) (B) $$\buildrel {:Cu...

Identify structure of compound (D).

In the given reaction,

Product (D) is

Identify 'A' and 'B' in the following reaction

The molar heat of vaporisation of water at 100\(^\circ\)C is 40.585 kJ/mol. The temperature at which a solution containing 5.60 g of Al2(SO4)3 per 1000 g of water boil is __________. (Assuming the degree of ionisation of salt to be 1).

On the basis of Ellingham diagram, which of the following is not correct?

(B) is identified by the characteristic colour of the flame. (A) and (B) are respectively :

An inorganic halide (A) reacts with water to form two acids (B) and (C). (A) also reacts with NaOH to form two salts (D) and (E) which remain in solution. The solution gives white precipitate with both AgNO3 and BaCl2 solutions respectively...

Following statements regarding the periodic trends of chemical reactivity to the alkali metals and the halogens are given. Which of these statements gives the correct picture?

How many mL of perhydrol is required to produce sufficient oxygen which can be used to completely convert 2 L of SO2 gas?

Choose the correct chemical reaction among the following:

Which of the following reactions represents disproportionation?

Titration of 0.1467 g of primary standard Na2C2O4 required 28.85 mL of KMnO4 solution. Calculate the molar concentration of KMnO4 solution.

An element occurs in two crystalline forms \(\alpha\) and \(\beta\). The \(\alpha\)-form has an fcc with \(a = 3.68\,\mathop A\limits^o\) and \(\beta\) form has a bcc with \(a = 2.92\,\mathop A\limits^o\). Calculate the ratio of their den...

Which of the following statements on critical constants of gases are correct?
I. Larger the Tc/pc value of a gas, larger would be the included volume.
II. Critical temperature (Tc) of a gas is greater than its Boyle temperature (TB).
III. A...

Out of the options listed below, which one cannot be explained by adsorption?

Which of the following statement is correct?

At the top of a mountain the thermometer reads 0\(^\circ\)C and the barometer reads 710 mm Hg. At the bottom of the mountain the temperature is 30\(^\circ\)C and the pressure is 760 mm Hg. The ratio of the density of air at the top to that ...

The enthalpies of combustion of carbon and carbon monoxide in excess of oxygen at 298 K and constant pressure are \(-\)393.5 kJ/mol and \(-\)280.0 kj/mol respectively. The heat of formation of carbon monoxide at constant volume is

Select the related word from the given alternatives.
Mechanic : Spanner : : Carpenter : ?

In the following question find the odd letters/group from the given alternatives.

Identify the missing part of the question figure and select it from given answer figures.

In the following question three dots are placed in the figure marked as (A). The figure is followed by four alternatives marked as (a), (b), (c) and (d). One out of these four options contains region(s) common to the circle, square, triangl...

Find out which of the answer figures (a), (b), (c) and (d) completes the figure matrix?

How many rectangles are there in the following figure?

Each of P, Q, T, A and B has different heights. T is taller than P and B but shorter than A and Q. P is not the shortest, who is the tallest?

Among the four answer figures, which one can be formed from the cut out pieces given below in the question figures?

A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicates how it will appear when opened.

Find out the wrong number.
2, 6, 12, 72, 865, 62208