Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 26

EASY

NEET

IMPORTANT

Earn 100

Maximum number of moles of barium phosphate formed when excess of barium chloride is mixed with $0.4 mole$ of sodium phosphate is:

${BaCl}_{2} + {Na}_{3} {PO}_{4} ⟶ {Ba}_{3} {({PO}_{4})}_{2} + NaCl$

50% studentsanswered this correctly

Important Questions on Some Basic Concepts of Chemistry

EASY

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 27

In the reaction

2 {KClO}_{3} \to 2 KCl + 3 O_{2}

, when

36.75 g

of

{KClO}_{3}

is heated, the volume of oxygen evolved at NTP will be:

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 28

One mole of potassium chlorate

({KClO}_{3})

is thermally decomposed and the gaseous product formed will react with excess of aluminium. How many moles of aluminium oxide

({Al}_{2}^{} O_{3})

are formed?

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 29

Assuming that petrol is iso-octane

(C_{8} H_{18})

and has a density

0.8 g {mL}^{- 1}

. What will be the consumption of oxygen on complete combustion of

1.425 L

petrol?

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 30

21.6 g

of silver coin is dissolved in

{HNO}_{3}

. When

NaCl

is added to this solution, all silver is precipitated as

AgCl

. The weight of

AgCl

is found to be

14.35 g

, then

%

of silver in coin is:

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 31

25.4 g

of iodine and

14.2 g

of chlorine are made to react completely to yield a mixture of

ICl

and

{ICl}_{3}

. Calculate the number of moles of

ICl

and

{ICl}_{3}

formed respectively.

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 32

A mixture of $1.0$ mole of $Al$ and $3.0$ moles of ${Cl}_{2}$ are allowed to react as:

$2 Al (s) + 3 {Cl}_{2} (g) ⟶ 2 {AlCl}_{3} (s)$

(1) Which is the limiting reagent?
(2) How many moles of ${AlCl}_{3}$ are formed?
(3) Moles of excess reagent left unreacted is

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 33

Zinc and hydrochloric acid react according to the reaction:

Zn (s) + 2 HCl (aq .) ⟶ {ZnCl}_{2} (aq .) + H_{2} (g)

If

0.3

mole of

Zn

are added to hydrochloric acid containing

0.52

mole

HCl

, how many moles of

H_{2}

are produced?

MEDIUM

NEET

IMPORTANT

Alpha Question Bank for Medical: Chemistry>Chapter 1 - Some Basic Concepts of Chemistry>Exercise 2>Q 34

When a mixture of

10

mole of

{SO}_{2}, 15

mole of

O_{2}

was passed over catalyst,

8

mole of

{SO}_{3}

was formed. How many mole of

{SO}_{2}

and

O_{2}

did not enter into combination?