List of practice Questions

How many unit cells are present in 100 g of an element with fcc crystal structure having density \(10\ \text{g cm}^{-3}\) and edge length \(100\ \text{pm}\)?
Which of the following is used as disinfectant?
Freundlich’s equation for adsorption of gas on solid is represented as
Which of the following is a Gattermann reaction?
The units nanometer and picometer are related as,
Which among the following gases is used in treatment of cancer?
In a first order reaction, 87.5% of reactant is converted into product in 15 minutes. The rate constant for the reaction is given by
Which of the following factors affect molarity of solution?
Which of the following compounds does NOT react with sodium metal?
Which among the following formulae represents the \(\omega\)-amino caproic acid?
Which among the following is NOT a polar molecular solid?
\(3.42 \times 10^{-2}\ \text{kg}\) sugar (molar mass = 342) is dissolved in water to produce \(234.2\ \text{g}\) of sugar syrup. What is the molality of sugar syrup?
Which among the following is a linear polymer?
For a reaction \(\Delta H = -30\ \text{kJ}\) and \(\Delta S = -45\ \text{J K}^{-1}\), at what temperature does the reaction change from spontaneous to non-spontaneous?
Compound A on reaction with chlorine in presence of UV light gives B, which when reacted with \(\text{NaNO}_2\) in the solvent N,N-dimethylformamide gives 2-nitrobutane. The compound A is
Average bond enthalpy of water is \(464.5\ \text{kJ mol}^{-1}\). If the energy required to break the first O–H bond is \(502\ \text{kJ mol}^{-1}\), how much energy per mole is required to break the second O–H bond?
Which among the following alkali metal chlorides crystallises in the form of a hydrate?
Which of the following polymers is prepared by using phenol?
Which of the following compounds is obtained by dry distillation of calcium propionate?
Which of the following processes for refining of metals involves the principle of selective adsorption of the components from a mixture?
Which among the following processes occurs at 1500 K in a blast furnace for extraction of iron?
Which of the following types of valences, according to Werner’s theory, is also called primary valence?
Which among the following is a correct formula of pentaammine aqua cobalt(III) iodide?
The IUPAC name of \(\text{CH}_3-\text{CH}_2-\text{O}-\text{CH}_2-\text{CH}(\text{CH}_3)_2\) is
Which of the following acids does NOT undergo Hell–Volhard–Zelinsky reaction?