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The temperature dependent term among the following is:
Assuming complete ionisation, same moles of which of the following compounds will require the least amount of acidified $\text{KMnO}_4$ for complete oxidation?
The structure of intermediate A in the following reaction, is
Which one of the following electrolytes has the same value of van't Hoff's factor ($i$) as that of $\text{Al}_2(\text{SO}_4)_3$ (if all are $100\%$ ionised)?
Which of the following pairs of gases is mainly responsible for green house effect? (1) Ozone and Ammonia (2) Oxygen and Nitrogen (3) Nitrogen and Sulphur dioxide (4) Carbon dioxide and Methane
Zr ($Z = 40$) and Hf ($Z = 72$) have similar atomic and ionic radii because of:
When 5 g of non-volatile non-electrolyte solute is dissolved in 100 g of a certain solvent, the freezing point of the solvent decreases by 0.25 K. The molar mass of the solute is: [$K_f$ of the given solvent = $1.2 \text{ K kg mol}^{-1}$]
Which of the following aqueous solutions of electrolytes will exhibit the least elevation in boiling point?
The vapour pressure of a solvent decreases by 10 mm Hg when a non-volatile solute is added to the solvent. The mole fraction of the solute in the solution is 0.2. What would be the mole fraction of the solvent if the decrease in vapour pressure is to be 20 mm Hg?
The following solutions were prepared by dissolving 10 g of glucose ($C_6H_{12}O_6$) in 250 ml of water ($P_1$), 10 g of urea ($CH_4N_2O$) in 250 ml of water ($P_2$) and 10 g of sucrose ($C_{12}H_{22}O_{11}$) in 250 ml of water ($P_3$). The decreasing order of osmotic pressures of these solutions is:
During osmosis, the flow of water through a semi-permeable membrane is:
Lanthanoid's most common oxidation state is:
If the rate constant for a first order reaction is k, the time (t) required for the completion of 99% of the reaction is given by:
A solution of sucrose (molar mass = $342 \text{ g mol}^{-1}$) has been prepared by dissolving $68.5 \text{ g}$ of sucrose in $1000 \text{ g}$ of water. The freezing point of the solution obtained will be: ($K_f$ for water = $1.86 \text{ K kg mol}^{-1}$)
If 8 g of a non-electrolyte solute is dissolved in 114 g of n-octane to reduce its vapor pressure to 80%, the molar mass (in g mol⁻¹) of the solute is: [Molar mass of n-octane is 114 g mol⁻¹]
Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R): Assertion (A): Helium is used to dilute oxygen in the diving apparatus. Reason (R): Helium has a high solubility in $O_2$. In light of the above statements, choose the correct answer from the options given below:
1% (w/w) solution of a compound is isotonic with 5% (w/w) sucrose (sugar) solution. The molecular weight of the compound will be:
Actinoids exhibit more number of oxidation states than lanthanoids. It is because of:
Which one of the following ions is the most stable in an aqueous solution? (At. No. Ti = 22, V = 23, Cr = 24, Mn = 25)
Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states?