List of practice Questions

Three tankers contain 403 litres, 434 litres and 465 litres of diesel respectively. Find the maximum capacity of a container that can measure the diesel of the three containers exact number of times.

(a) 
(i) Provide the number in the box , such that \(\frac{2}{3}\)× __= \(\frac{10}{30}\).
(ii) The simplest form of the number obtained in __ is _____.
(b) 
(i) Provide the number in the box , such that \(\frac{3}{5}\) × __=\(\frac{24}{75}\).
(ii) The simplest form of the number obtained in __is _____.

What is the distance of centre of mass of a half ring from centre if the ring has radius = 0.5 m. [XI]

Consider the following reaction in aqueous medium at 25^oC.

The equilibrium of above reaction shifts towards left in the presence of

3-tert-butylphenol reacts with different halogens by electrophillic substitution under appropriate conditions that are given below:

The observed pattern of electrophillic substitution can be explained by

Which law directly explains the law of conservation of mass ?

What does Schedule M2 deal with?

Why is Thermogravimetric analysis used for?

Alkaloid Strychnine is present in which of the following?

What is the weight of 00 capsules in mg?

What is the Lucas test?

Name the schedule for disinfectants?

What is the family of Isabgol?

In which resin cinnamic and benzoic acid is present?

What is the Schedule for Ophthalmic preparation?

Electrovalent bond formation depends on

Taking chromium and arsenic, which are toxic, out of pressure-treated wood, and using new less toxic chemicals for bleaching paper, are examples of___________.

When two unrelated individuals or lines are crossed, the performance of F1 hybrid in often superior to both of its parents. This phenomenon is called ________.

The maximum percentage of polyunsaturated fatty acid present in:

A spherical balloon of radius $a$ is charged. The energy density in the electric field at point $P$ shown in the figure given below is $W$. If the balloon is inflated to a radius $b$ without altering its charge, what is the energy density at $P$?

When $10ml$ of $0.2M$ solution of an acid is added to $250ml$ of a buffer solution with $pH=6.34$, the $pH$ of the solution becomes $6.32$. The buffer capacity of the solution is:

The melting point of particles in nano form ___________

Solid $Ba{\left({NO}_3\right)}_2$ is gradually dissolved in a $1.0\times {10}^{-4}M{Na}_2{CO}_3$ solution. At which concentration of ${Ba}^{2+}$, precipitate of ${BaCO}_3$ begins to form?$(K_{sp}$ for ${BaCO}_3=5.1\times {10}^{-9})$

The tendency of a reaction to take place spontaneously is greatest when the reaction is:

Direction: Read the following statements and answer wrong statements.1. Nitrogenous base is linked to pentose sugar through an N-glycosidic bond.2. Phosphate group is linked to 5'-OH of a pentose sugar through phosphoester bond.3. Two nucleosides are linked through a 3'- 5' N-glycosidic bond.4. Negatively charged DNA is wrapped around positively charged histone octamer to form the nucleosome.5. The chromatin that is more densely packed and stains dark is called euchromatin.