Explore topic-wise InterviewSolutions in Current Affairs.

Compute the bulk modulus of water from the following data: Initial volume = 100.0 litre, Pressure increase = 100.0 atm (1 atm = 1.013 × 10⁵ Pa), Final volume = 100.5 litre. Compare the bulk modulus of water with that of air (at constant temperature). Explain in simple terms why the ratio is so large.

(a) Derive integrated rate equation for $1^{st}$ order rate equation

(b) A first order reaction is found to have a rate constant, $k=5.5\times {10}^{-14}{S}^{-1}$ Find the half-life of the reaction.

An alloy of iron (54.7%), nickel (45%) and manganese (0.3%) has a density of $8.17{\text{g/cm}}^3$. How many iron atoms are present in a block of the alloy measuring $10\text{cm}\times 20\text{cm}\times 15\text{cm}$?

In the closest packing of spheres of uniform size, the ratio of radii of octahedral and tetrahedral holes is :

A zero order reaction is $50\text{\%}$ complete in $20\text{min.}$ How much time will it take to complete $90\text{\%}$?

A chiral carbon has four different groups attached to it. So does this mean doubly or triply bonded carbon atoms cannot be chiral? Please explain.

The order of first electron affinity of O,S and Se is:

What is `A' in the following reaction $2F{e}^{3+}\left(aq\right)+S{n}^{2+}\left(aq\right)\to 2F{e}^{2+}\left(aq\right)+A$

The arrangement ABC ABC ABC ..... is referred as

[MP PET 2001]

The number of electrons involved in the electro deposition of 63.5g of Cu from a solution of CuSO4 is

1)6.0×10(23) 2)3.011 ×10(23). 3)12.04×10(23) 4)6.02×10(22) (the ones in the brackets the powers)

What is the hybridization of $C$ atom in $C{H}_3$ radical?

$C{H}_{3}COONa\underset{CaO}{\overset{NaOH}{\to }}A\underset{C{l}_2/hv}{\overset{Onemole}{\to }}B\underset{Ether}{\overset{Na}{\to }}C\stackrel{(C{H}_{3}COO{)}_{2}Mn}{\to }D$. Incorrect statement is

A mixture of $H_{2}S{O}_4$ and $H_2{C}_2{O}_4$ (oxalic acid) and some inert impurity weighing $3.822$ g was dissolved in water and the solution made up to $1$ litre. $10$ mL of this solution requires $3$ mL of $0.1$ N $NaOH$ for complete neutralization. In another experiment $100$ mL of the same solution in hot condition requires $4$ mL of $0.02$ M $KMn{O}_4$ solution for complete reaction. The wt. % of $H_{2}S{O}_4$ in the mixture was:

Question 91

Match each of the entries in Column I with the appropriate entry in Column II.

The element ${}_{90}^{232}Th$ belongs to 4n series which will be the end product of this series:

The formation of $P{H}_4^{+}$ is difficult compared to $N{H}_4^{+}$ because:

How many moles of $KMn{O}_4$ are reacted with one mole of ferrous oxalate in an acidic medium?

$C_2$ is rotated anti-clockwise ${120}^{\circ }$ about$C_2-C_3$ bond. The resulting conformer is

If $\frac{P}{P_c}=x$ (reduced pressure), $\frac{V}{V_c}=y$ (reduced volume) and $\frac{T}{T_c}=z$ (reduced temperature), then,

Name an element from group 2 Which forms an amphoteric oxide and a water soluble

Dry air has a molar composition of $22\%O_2$ and $78\%N_2$. Calculate the average molecular weight of dry air.

Conjugate base of $HC{O}_3^{-}$ is:

The central atom in _____ violates the octet rule. Given the atomic number of

$Se=34$, $As=33$, $B=5$ and $N=7$.

Question 15
The values of van't Hoff factors for KCL, NaCl and $K_{2}S{O}_4$ respectively are ........ .
(a) 2, 2 and 2 (b) 2, 2 and 3 (c) 1, 1 and 2 (d) 1, 1 and 1