List of practice Questions

An element crystallizes in bcc type of unit cell having atomic radius \( 1.33 \times 10^{-8} \) cm, the edge length of unit cell will be
Which among the following compounds is treated with benzonitrile to obtain benzophenone in dry ether and then acid hydrolysis?
Identify the product C in the following reaction.
\[ \text{CH\(_3\)CH\(_2\)COOH} \xrightarrow{\text{NaOH}} A \xrightarrow{\text{CaO, }\Delta} B \xrightarrow{\text{HNO\(_3\)}} C \]
The cartesian co-ordinates of the point whose polar co-ordinates are \( \left( \frac{1}{2}, 120^\circ \right) \text{ are}
In aqueous phase the order of basic strength of alkylamine is
What is the number of moles and total number of atoms respectively present in 5.6 cm\(^3\) of ammonia gas at STP?
An element crystallizes in bcc type of unit cell, the density and edge length of unit cell is 4 g cm\(^{-3}\) and 500 pm respectively. What is the atomic mass of an element?
Identify product ‘A’ in the following reaction.
\[ \text{R - C} \equiv \text{N} \xrightarrow{\text{DIBAL-H}} \xrightarrow{\text{H}_3\text{O}^+} A \]
0.5 molal aqueous solution of a weak acid (HX) is 20% ionised. If Kf of water is 1.86 K kg mol⁻¹, the lowering in freezing point of solution is
Which polymer is obtained from monomers 3-Hydroxy butanoic acid and 3-Hydroxy pentanoic acid?
In an isothermal and reversible process, \(1.6 \times 10^{-2}\) kg O\(_2\) expands from 10 dm\(^3\) to 100 dm\(^3\) at 300 K, work done in the process is (R = 8.314 J/mol·K)
The half life of a first order reaction is 6.0 hours. How long will it take for the concentration of reactant to decrease from 0.4 M to 0.12 M?
Identify the formula of potassium trioxalato aluminate (III).
Identify the mineral of aluminium from following.
Identify the compound A and B in the following reaction.
\[ \text{CH}_3\text{Cl} + \text{KCN (alc)} \xrightarrow{\Delta} A + 2\text{H}_2\text{O} + \text{HCl} \rightarrow B + \text{NH}_4\text{Cl} \]
Which of the following phenols is isolated from defensive secretion of grasshopper species?
Which following pair of elements does NOT represent chemical twins?
What is the molecular formula of glyceraldehyde?
Which among the following is used as a fumigant pesticide for strawberries?
Sulphapyridine is a/an
Electrophoresis is used .......
Mole fraction of solute in its 2 molal aqueous solution is
Nickel crystallises in a fcc type of unit cell, with edge length 0.3524 nm. Calculate the radius of the nickel atom.
Which among the following complexes is a homoleptic and cationic in nature?
Which from the following compounds does NOT contain phantom atom?