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This mock test of Stoichiometry MCQ - 2 (Advance) for JEE helps you for every JEE entrance exam.
This contains 18 Multiple Choice Questions for JEE Stoichiometry MCQ - 2 (Advance) (mcq) to study with solutions a complete question bank.
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QUESTION: 1

At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant ?

Solution:

**Temperature in degree Celsius = 546-273 = 273 deg C.**

Given: Volume = 2L

At STP, Pressure, P1 = 1 atm and Temperature, T1 = 273 K

Final Volume, V2 = 4L

To find: Final temperature, T2

Solve: As we know

PV = nRT

Now, for given number of moles at constant pressure volume is directly proportional to temperature. We can write as:

*Multiple options can be correct

QUESTION: 2

A mixture of C_{3}H_{8} (g) O_{2} having total volume 100 ml in an Eudiometry tube is sparked & it is observed that a contraction of 45 ml is observed what can be the composition of reacting mixture.

Solution:

*Multiple options can be correct

QUESTION: 3

A mixture of 100 ml of CO, CO_{2} and O_{2} was sparked. When the resulting gaseous mixture was passed through KOH solution, contraction in volume was found to be 80 ml, the composition of initial mixture may be (in the same order)

Solution:

*Multiple options can be correct

QUESTION: 4

An aqueous solution consisting of 5 M BaCl_{2}, 58.8% w/v NaCl solution & 2m Na_{2} X has a density of 1.949 gm/ml. Mark the option(s) which represent correct molarity (M) of the specified ion.

[Assume 100% dissociation of each salt and molecular mass of X^{2–} is 96]

Solution:

*Multiple options can be correct

QUESTION: 5

Solution(s) containing 30 gm CH_{3}COOH is/are

Solution:

*Multiple options can be correct

QUESTION: 6

A sample of H_{2}O_{2} solution labelled as 56 volume has density of 530 gm/L. Mark the correct option(s)

representing concentration of same solution in other units. (Solution contains only H_{2}O and H_{2}O_{2})

Solution:

QUESTION: 7

‘2V’ ml of 1 M Na_{2}SO_{4} is mixed with ‘V’ ml of 2M Ba(NO_{3})_{2} solution.

Solution:

QUESTION: 8

One type of artifical diamond (commonly called YAG for yttrium aluminium garnet) can be represented by the formula Y_{3}Al_{5}O_{12} **[Y = 89, Al = 27]**

**Column I Column II**

Element Weight percentage

(A) Y (P) 22.73 %

(B) Al (Q) 32.32 %

(C) O (R) 44.95 %

Solution:

QUESTION: 9

The recommended daily dose is 17.6 milligrams of vitamin C (ascorbic acid) having formula C_{6}H_{8}O_{6}.

Match the following. Given : N_{A} = 6 × 10^{23}

**Column I Column II**

(A) O-atoms present (P) 10^{_4} mole

(B) Moles of vitamin C in 1gm of vitamin C (Q) 5.68 × 10^{_3}

(C) Moles of vitamin C in 1gm should be consumed daily (R) 3.6 × 10^{20}

Solution:

QUESTION: 10

At 100° C and 1 atmp, if the density of liquid water is 1.0 g cm^{–3 }and that of water vapour is 0.0006 g

cm^{–3}, then the volume occupied by water molecules 1 L of steam at that temperature is:

Solution:

QUESTION: 11

** **How many moles of e^{_} weigh one Kg

Solution:

QUESTION: 12

Calculate the molarity of pure water using its density to be 1000 kg m^{_3}. **[JEE' 2003]**

Solution:

QUESTION: 13

One gm of charcoal absorbs 100 ml 0.5 M CH_{3}COOH to form a monolayer, and there by the molarity of CH_{3}COOH reduces to 0.49. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid. Surface area of charcoal = 3.01 × 10^{2} m^{2}/gm.

Solution:

QUESTION: 14

Calculate the amount of Calcium oxide required when it reacts with 852 gm of P_{4}O_{10}.**[JEE 2005]**

Solution:

QUESTION: 15

20% surface sites have adsorbed N_{2}. On heating N_{2} gas evolved from sites and were collected at 0.001 atm and 298 K in a container or volume is 2.46 cm^{3}. Density of surface sites is 6.023 × 10^{14}/cm^{2} and surface area is 1000 cm^{2}, find out the no. of surface sites occupied per molecule of N_{2}.

Solution:

QUESTION: 16

Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is: **[JEE 2011]**

Solution:

QUESTION: 17

Reaction of Br_{2} with Na_{2}CO_{3} in aqueous solution gives sodium bromide and sodium bromate with evolution of CO_{2} gas. The number of sodium bromide molecules involved in the balanced chemical equation is: **[JEE 2011]**

Solution:

QUESTION: 18

A decapeptide (Mol. wt. 796) on complete hydrolysis gives glycine (Mol. Wt. 75), alanine and phenylalanine. Glycine contributes 47.0% to the total weight tto the hydrolysed products. The number of glycine units present in the decapeptideis : **[JEE 2011]**

Solution:

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