Q:

The degree of dissociation ( $α$ ) of a weak electrolyte, $A_{x} B_{y}$ is related to van't Hoff factor (i) by the expression:

$1 . α = \frac{x + y + 1}{i - 1}$

$2 . α = \frac{x + y - 1}{i - 1}$

$3 . α = \frac{i - 1}{x + y + 1}$

$4 . α = \frac{i - 1}{x + y - 1}$

A) 1 is correct	B) 2 is correct
C) 3 is correct	D) 4 is correct

Answer & Explanation Answer: D) 4 is correct

Explanation:

Van't Hoff factor (i) = $\frac{O b s e r v e d C o l l i g a t i v e P r o p e r t y}{N o r m a l C o l l i g a t i v e P r o p e r t y}$

$\begin{matrix} A_{x} B_{y} \\ 1 - α \end{matrix} \to \begin{matrix} x A^{+ y} \\ x α \end{matrix} + \begin{matrix} y B^{- x} \\ y α \end{matrix}$

Total Moles = $1 - α + x α + y α$ = $1 - α (x + y - 1)$

$i = \frac{1 + α (x + y - 1)}{1}$

$\Rightarrow α = \frac{i - 1}{x + y - 1}$

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Filed Under: Chemistry
Exam Prep: AIEEE

6 7242

Q:

One third of a Number is 96. What will 67% of that Number be?

A) 192.96	B) 181.44
C) 169.92	D) 204.48

Answer & Explanation Answer: A) 192.96

Explanation:

Let the Number be x.

Given that one third of a Number is 96.

i.e x = 3 x 96 = 288.

67% of x = $\frac{x \times 67}{100} = \frac{288 \times 67}{100} = 192.96$

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

3 7235

Q:

Select the related word/letters/numbers from the given alternatives:

9 : 162 :: 8 : ?

A) 96	B) 112
C) 128	D) 160

Answer & Explanation Answer: C) 128

Explanation:

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Filed Under: Verbal Reasoning - Mental Ability

0 7229

Q:

Which of the following places is associated with Jainism

A) Kapilvastu	B) Pava
C) Prayag	D) Shravasti

Answer & Explanation Answer: B) Pava

Explanation:

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Filed Under: Indian History

5 7226

Q:

_________ has successfully created the country’s first smart grid project, which will generate power from renewable sources of energy.

A) Indian Institutes of Technology	B) Indian Institutes of Engineering Science Technology
C) Indian Institutes of Space Science and Technology	D) Indian Institutes of Management

Answer & Explanation Answer: B) Indian Institutes of Engineering Science Technology

Explanation:

The Indian Institute of Engineering Science and Technology (IIEST) has successfully created the country’s first smart grid project, which will generate power from renewable sources of energy. The project will soon be inaugurated by President Pranab Mukherjee, IIEST Director Prof Ajoy Kumar Roy. The smart grid will be synchronised to generate power from solar, wind and vegetable waste resources, depending on the weather conditions and availability of waste products. It is the first of its kind in the country.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

7 7208

Q:

Merdeka cup is associated with

A) Badminton	B) Tennis
C) Football	D) Hockey

Answer & Explanation Answer: C) Football

Explanation:

Merdeka cup is associated with Football in Indonesia.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

5 7205

Q:

The boundary of which country does not seem to touch the Caspian sea?

A) Azerbaijan	B) Russia
C) Ukraine	D) Turkmenistan

Answer & Explanation Answer: C) Ukraine

Explanation:

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Filed Under: General Awareness
Exam Prep: Bank Exams

0 7204

Q:

Rearrange the parts of the sentence in correct order.

Climatic information can

P : be obtained through an

Q : in tree growth

R : understanding of changes

A) PQR	B) RPQ
C) PRQ	D) QRP

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