Question 1 :
The relative lowering in vapour pressure is proportional to the ratio of number of :
Question 2 :
<p align="justify"> <font face="Cambria Math, serif">Which of the following solutions will boil at the highest temperature?</font></p>
Question 3 :
The freezing point of equimolal aqueous solution will be highest for :<br/>
Question 4 :
<p> <font face="Cambria Math, serif">Molecular weight of urea is 60. A solution of urea containing 6 g of urea in one litre is a</font></p>
Question 5 :
The addition of $3\:g$ of substance to $100\:g\:CCl_4\:(M\,=\,154\:g\:mol6{-1})$ raises the boiling point of <br/>$CCl_4$ by $0.60^{\circ}C$ of $K_b\:(CCl_4)$ is $5.03\:kg\:mol^{-1}\:K$. Calculate:<br/>(a)$\;$the freezing point depression<br/>(b)$\;$the relative lowering of vapour pressure<br/>(c)$\;$the osmotic pressure at $298\:K$<br/>(d)$\;$the molar mass of the substance<br/>Given $K_f(CCl_4)\,=\,31.8\:kg\:mol^{-1}\:K$ and $\rho\:(density)\:of\:solution\,=\,1.64\:g/cm^3$.
Question 7 :
<p> <font face="Cambria Math, serif">Zn acts as sacrificial or cathode protect ion to prevent rusting of iron because</font></p>
Question 8 :
<p> <font face="Cambria Math, serif">A KI solution containing starch, turns blue on the addition of chlorine. Which of the following statements explain(s) this?</font></p>
Question 9 :
<p> <font face="Cambria Math, serif">One faraday is the amount of charge :</font></p>
Question 10 :
<p> <font face="Cambria Math, serif">The increase in the molar conductivity of </font> <img style='object-fit:contain' align="absmiddle" src="https://storage.googleapis.com/teachmint/question_assets/JEE%20Advanced/60007eb6c76e2e558bccde1b"/> <font face="Cambria Math, serif"> with dilution is due to</font></p>
Question 11 :
The number of tetrahedral voids present on each body diagonal in CCP unit cell is:
Question 12 :
The number of octabedral viods per atom in a crystal lattice is :
Question 13 :
Percentage of free space in a body-centered cubic unit cell is:<br/>
Question 14 :
If the anions (A) form hexagonal closest packing and cations (C) occupy only 2/3 octahedral voids in it, then the general formula of the compound is:
Question 15 :
The coordination number of crystal structure in which potassium metal crystallizes is:
Question 17 :
In HCP arrangement in three dimensions, the overall coordination number of each sphere is:
Question 19 :
In the spinel structure, oxides ions are cubical-closest packed whereas $1 / 8th$ of tetrahedral voids are occupied by $A^{2+}$ cation and $1 / 2$ of octahedral voids are occupied by $B^{3+}$ cations. The general formula of the compound having spinel structure is :
Question 21 :
The number of octahedral voids in a unit cell of cubic close packed structure is?
Question 22 :
The conductance of transition metal is not much affected when it forms interstitial carbide because:<br/>
Question 23 :
The ratio of cationic radius to anionic radius in an ionic crystal is greater than $0.732$. Its coordination number is
Question 24 :
<div><b>Assertion</b>: $6 : 6$ co-ordination at normal temperature and pressure changes to $8 : 8$ co-ordination at high pressure.</div><div><b>Reason: </b>Pressure influences the structure of solids.</div>
Question 26 :
An hcp and a ccp structure for a given element would be expected to have
Question 28 :
Identical spheres are undergoing two-dimensional packing in square close packing and hexagonal close packing. Which is correct regarding the spheres?
Question 29 :
Which of the following statements is/are correct for both fluorite and antifluorite structures?