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Difference between diamagnetic paramagnetic and ferromagnetic.

The relative stability of $M^{+3}$ ions can be given as

How many number of protons present in 32g of SO2

Consider a redox reaction:

$Fe{S}_2+KMn{O}_4+H^{+}\to F{e}^{3+}+S{O}_4^{2-}+M{n}^{2+}+H_{2}O$.

If the molar mass of $Fe{S}_2$ is M, then equivalent mass of $Fe{S}_2$ would be equal to:

Number of atoms per unit cell,if atoms are present at the corner of unit cell and two atoms at each body diagonal

Below 900 ⁰C, BeCl₂ in vapour phase exists as:

Hydrolysis of $SiC{l}_4$ gives:

Find the minimum concentration of $P{b}^{2+}$ ions that will initiate the precipitation of $PbS{O}_4$ from a solution containing $0.005mol{L}^{-1}$ of $S{O}_4^{2-}$ ions?
(Given $K_{sp}$ for $BaS{O}_4=1.8\times {10}^{-8}$ )

How does bond balances in redox reaction

Benzaldehyde on reaction with $C{H}_3-CH-CHPP{h}_3$ forms:

The reaction of 1 - bromo - 3 - chloro cyclo butane with metallic sodium in dioxane gives

How should we find the number of electron pairs in a molecule like C2H2 using the formula (V+L+A-C)÷2.

WHERE V= VALENCE ELECTRONS,.

L=LIGANDS,.

A=ANIONIC CHARGE,

C=CATIONIC CHARGE,...???

The rise in the boiling point of a solution containing 1.8 gram of glucose in 100g of a solvent in 0.1⁰C. The molal elevation constant of the liquid is

Lindemann proposed the following detailed mechanism for gas phase isomerization, the reaction is

In the above scheme, $A^{\ast }$ is a molecule that has enough vibrational energy to decompose or isomerise. The Lindemann mechanism is followed by most of gas phase decomposition or isomerization reaction.
For the overall unimolecular isomerization of cyclopropane to propylene at , the values of versus concentration is as follows.
$\underset{k_{unit}}{\left|M\right|}\underset{\frac{1}{137.5}}{\left|1M\right|}\underset{\frac{1}{131.25}{\text{in s}}^{-1}}{\left|2M\right|}$

As per Lindemann mechanism $k_{unit}$ is

Who is second to the right of T?

Which of the following is an functional isomer of butanal?

The number of $s{p}^2$ hybrid orbitals in molecule of benzene is:

In a reaction, 2A → Products, the concentration of A decreases from 0.5 mol L^-1 to 0.4 mol L^-1 in 10 min. The rate during this interval will be

One mole of any substance contains $6.022\times {10}^{23}$ atoms/molecules. Number of molecules of $H_{2}S{O}_4$ present in 100 mL of $0.02M{H}_{2}S{O}_4$ solution is.............

(a) $12.044\times {10}^{20}$ molecules (b) $6.022\times {10}^{23}$ molecules

(c) $1\times {10}^{23}$ molecules (d) $12.044\times {10}^{23}$ molecules

The largest atomic radius among the following is of:

What is the correct increasing order of a gas being liquifiable?

Draw diagram showing micelle formation by the following detergent.
$C{H}_3(C{H}_2{)}_{10}C{H}_{2}OS{O}_{3}Na$

Identify the correct order of increasing bond order:

Which of the following expression is/are correct?

The heat of neutralization of a strong base and a strong acid is 57 kJ. The heat released, when 0.5 mole of $HN{O}_3$ solution is added to 0.20 moles of NaOH solution, is:

Which of the following products is formed when adipic acid is heated?

The height of a mercury barometer is 75 cm at sea level and 50 cm at the top of a hill. Ratio of density of mercury to that of air is 104. The height of the hill is

Which nomenclature is not according to IUPAC convention?

What is the structure of$BeC{l}_2$ molecule in gaseous and solid state?

The species that exhibits the highest R${}_f$ value in a thin layer chromatogram using a non polar solvent on a silica gel is

If soap has high alkali content it irritates skin. HOW can the amount of excess alkali be determined? What can be the source of excess alkali?

Which of the following has the maximum number of unpaired electrons?

Arrange the following compounds in increasing reactivity with $C{H}_{3}ONa$.

The minimum quantity in grams of $H_{2}S$ needed to precipitate $63.5\text{g}$ of $C{u}^{2+}$ ion will be:
(molar mass of $Cu=63.5\text{g/mol}$)

$C{u}^{2+}+H_{2}S\to CuS+2H^{+}$

If kinetic energy of electron revolving in first orbit of $H$-atom is $E,$ then potential energy of electron revolving in second orbit of $H{e}^{+}$
(correct answer + 1, wrong answer - 0.25)

The value of equilibrium constant for self ionisation of water at ${25}^{\circ }C$ is (density of water 1 $g/ml$) :

Methane gives water gas when heated with steam in presence of

The product obtained on passing excess carbondioxide through lime water is ___

A $10g$ sample of $CuS$ and $C{u}_{2}S$ was treated with $100mL$ of $1.25M{K}_{2}C{r}_2{O}_7$ to produce $C{r}^{3+},C{u}^{2+}$ and $S{O}_2$. The excess oxidant was reacted with $50mL$ of $F{e}^{2+}$ solution. $25mL$ of the same $F{e}^{2+}$ solution required $0.875MKMn{O}_4$ under acidic condition, the volume of $KMn{O}_4$ used was $20mL$. Find the percentage of $C{u}_{2}S$ in the sample.
Given: molar mass of $Cu$ is $63.5gmo{l}^{-1}$

The increasing order of bond angles in $H_{2}S,N{H}_3,B{F}_3$ and $Si{H}_4$ is: