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Concentrated aqueous sulphuric acid is $98\%$ $\text{H}_2\text{SO}_4$ by mass and has a density of $1.80\text{ g mL}^{-1}$. Volume of acid required to make one litre of $0.1\text{ M}$ $\text{H}_2\text{SO}_4$ solution is:
In which of the following molecules, all atoms are coplanar?
The pair of species with the same bond order is:
Which of the following molecule does not possess a $\pi$ bond?
The mass of $CO_2$ produced by heating 20 g of 20% pure limestone, as per the equation given below, is: $$ CaCO_3(s) \xrightarrow{\text{heat}} CaO(s) + CO_2(g) $$
Match the compounds of Xe in Column I with the molecular structure in Column II. Column-I (a) $XeF_{2}$ (b) $XeF_{4}$ (c) $XeO_{3}$ (d) $XeOF_{4}$ Column-II (i) Square planar (ii) Linear (iii) Square pyramidal (iv) Pyramidal
To produce $20 \text{ moles}$ of ammonia via Haber's process, how many moles of hydrogen molecules are required?
A mixture of gases contains $\text{H}_2$ and $\text{O}_2$ gases in the ratio of $1:4$ (w/w). The molar ratio of the two gases in the mixture will be:
Which of the following is not a correct statement?
Consider the given compound: In the given options, the following for the above compound are, respectively: (i) $sp^{2}$ hybridised carbon atoms and (ii) $\pi$ bonds.
A paramagnetic molecule among the following is:
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.
$6.02 \times 10^{20}$ molecules of urea are present in $100 \text{ mL}$ of its solution. The concentration of the solution is:
A mixture of gases contains $\text{H}_2$ and $\text{O}_2$ gases in the ratio of $1:4$ (w/w). What is the molar ratio of the two gases in the mixture?
The correct order of increasing bond angles in the following species is:
In $NO_{3}^{-}$ ion, the number of bond pair and lone pair of electrons on nitrogen atom are respectively:
Paramagnetic species among the following is:
Consider the following List-I and List-II: **List-I (Molecule)** (a) $PCl_{5}$ (b) $SF_{6}$ (c) $BeCl_{2}$ (d) $NH_{3}$ **List-II (Shape or geometry)** (i) Trigonal planar (ii) Octahedral (iii) Linear (iv) Trigonal pyramidal Identify the **wrong** match from the given pairs:
The bond order of 1.5 is shown by:
Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has a high melting point?