Please be patient as the PDF generation may take upto a minute.

What volume of H₂ is liberated under similar conditions which released 2.24 dm³ O₂ by electrolysis of water?
(1) 2.24 dm³
(2) 1.12 dm³
(3) 4.48 dm³
(4) 0.56 dm³

How many moles of sodium carbonate is formed by decomposing 0.2 mole sodium
bicarbonate completely?
1. 0.1
2. 0.2
3. 0.4
4. 0.05

200 ml of 1 M HCl solution is diluted so that the final molarity is 0.5 M. The volume of water added for dilution is
(1) 100
(2) 400
(3) 200
(4) 50

5 g of NaOH is added in 200 ml of water. The molarity of resultant solution will be
1. 1 M
2. 0.725 M
3. 0.825 M
4. 0.625 M

Find the volume of CO required to reduce 0.25 mole ferric oxide as per the given equation
Fe₂O₃+3CO$\to$2Fe+3CO₂
(1) 16.8 dm³
(2) 67.2 dm³
(3) 22.4 dm³
(4) 44.8 dm³
 

What is the mass % of a solute in the solution obtained by dissolving 8 g of solute in 60 g of water?
1. 4.57%
2. 9.1%
3. 11.76%
4. 12.78%

In Haber's process N₂+3H₂ $\to$ 2NH₃, starting with 5L of N₂ at STP and 5L of H₂, the limiting reagent will be
1. N₂
2. H₂
3. Both N₂ and H₂
4. Neither N₂ nor H₂

50 g of a sample of Ca${\left(OH\right)}_2$ ¡s dissolved in 50 ml of O.5N HCl solution. The excess of HCl was neutrilized by 0.3N NaOH. The volume of NaOH used was 20cc. Calculate the percentage purity of Ca${\left(OH\right)}_2$
($M_{ca}$=40, $M_0$ = 16, $M_H$ = 1)
1. 14%
2. 1.4%
3. 0.14%
4. None of these

${\mathrm{H}}_2+{\mathrm{O}}_2\to {\mathrm{H}}_2{\mathrm{O}}_2$
3 mole H₂ is treated with x mole O₂ to form 85 gm of ${\mathrm{H}}_2{\mathrm{O}}_2$. What is the value of x?
1. 2.5
2. 3
3. 3.5
4. 4

Which of the following has maximum number of moles?
1. $1 \mathrm{g} {\mathrm{H}}_2$
2. $5.6 \mathrm{lit}. {\mathrm{SO}}_2 \mathrm{at} \mathrm{NTP}$
3. 18 g gulcose
4. $3.011\times {10}^{22} {\mathrm{N}}_2 \mathrm{molecule}$

25 ml of a solution containing HCl and ${\mathrm{H}}_2{\mathrm{SO}}_4$ required 10 ml of a 1 N NaOH solution for neutralization. 20 ml of the same acid mixture on being treated with an excess of ${\mathrm{AgNO}}_3$ gives 0.1435 g of AgCl. The normality of HCl and normality of the ${\mathrm{H}}_2{\mathrm{SO}}_4$ are respectively
1. 0.40 N and 0.05 N
2. 0.05 N and 0.35 N
3. 0.05 N and 0.25 N
4. 0.40 N and 0.5 N 

x g of NaHCO3 is treated with 600 ml of $\frac{\mathrm{N}}{2}$ HCl and the excess of HCl is further neutralized by 100 ml of $\frac{\mathrm{N}}{2}$ NaOH. 
Then the value of x would be
(1) 60
(2) 40
(3) 31
(4) 21

How much minimum volume of oxygen will be required for complete combustion of 60 ml of ethylene enter (CH₂=CH₂)
(1) 150 ml
(2) 170 ml
(3) 190 ml
(4) 180 ml

x g of ${\mathrm{CaCO}}_3$ is treated with 400 ml $\frac{\mathrm{N}}{10} \mathrm{HCL}$, when all the ${\mathrm{CaCO}}_3$ is converted into ${\mathrm{CaCl}}_2$. The value of x would
1. 0.2
2. 0.8
3. 1.2
4. 2

\(NaOH\,+\,H_{2}CO_{3}\,\to \,NaHCO_{3}\,+\,H_{2}O\)
x g NaOH when treated with excess of H₂CO₃ forms 100 milliequivalent of NaHCO₃. The value of x would be:
1. 4
2. 8
3. 10
4. 12