List of practice Questions

The octant in which the point (2,-4,-7) lies is

If the straight line 2x-3y+17 = 0 is perpendicular to the line passing through the points (7,17) and (15,β), then β equals

If \(a_1, a_2, a_3, \ldots, a_{10}\) is a geometric progression and \(\frac{a_3}{a_1} = 25\) then \(\frac{a_9}{a_5}\) equals

If all permutations of the letters of the word MASK are arranged in the order as in dictionary with or without meaning, which one of the following is 19th word ?

In Kolbe's reaction the reacting substances are

An organic compound with molecular formula C₇H₈O dissolves in NaOH and gives a characteristic colour with FeCl₃. On treatment with bromine, it gives a tribromo derivative C₇H₅OBr₃. The compound is

Identify the products A and B in the reactions: \(R-X + AgCN \longrightarrow A + AgX\)  \(R-X + KCN \longrightarrow B+ KX\)

Among the following product the products formed by the reaction of anisole with HI are

The major product obtained when ethanol is heated with excess of conc. \(H_2SO_4\) at 443 K is

All Cu(II) halides are known, except ithe iodide, the reason for it is that

In the following pairs of halogen compounds, which compound undergoes SN¹ reaction?

The Complex hexamine platinum (IV) chloride will give ___ number of ions on ionization

\((NH_4)_2Cr_2O_7\) on heating liberates a gas. The same gas will be obtained by

Which can adsorb larger volume of hydrogen gas ?

What will be the value of x in Fe⁺⁺, if the magnetic moment \(\mu = \sqrt{24}\) BM

A transition metal exists in its highest oxygen state. It is expected to behave as

The strong reducing property of hypophosphorous acid due to

Half- life of a reaction is found to the inversely proportional to the fifth power of its initial concentration, the order of reaction is

For n^th order of reaction, Half-life period is directly proportional to

For spontaneity of a cell, which is correct ?

Specific Conductance of 0.1 M HNO₃ is 6.3 x 10^-2 ohm ^-1 cm^-1. The molar conductance of the solution is

Colloidal solution commonly used in the treatment of skin disease is

The rate of reaction:
\(\text{CH}_3\text{COOC}_2\text{H}_5 + \text{NaOH} \rightarrow \text{CH}_3\text{COONa} + \text{C}_2\text{H}_5\text{OH}\)
is given by the equation. Rate \(K[\text{CH}_2\text{COOC}_2\text{H}_5] [\text{NaOH}]\). If concentration is expressed in \(\text{mol L}^{-1}\). The unit of K is

A first order reaction is half completed in 45 min. How long does it need 99.9% of the reaction to be completed?

If 3 g of glucose (Molar mass = 180) is dissolved in 60 g of water at 15 degree, the osmotic pressure of the solution will be