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 8034

Q:

Curdling of milk is an example of

A) Inversion	B) Denaturation
C) Hydrolysis	D) Coagulation

Answer & Explanation Answer: D) Coagulation

Explanation:

Coagulation :: The action or process of a liquid, especially blood, changing to a solid or semi-solid state.

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Filed Under: Chemistry
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13 8033

Q:

The religious text of the Jews is named as

A) The Analectus	B) Torah
C) Tripatika	D) Zend Avesta

Answer & Explanation Answer: B) Torah

Explanation:

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Filed Under: Books and Authors

16 8033

Q:

'AADHAR' is a programme

A) To help senior citizens	B) To provide nutritional support to adolescent woman
C) To train people for social defence	D) To provide identity to Indian residents

Answer & Explanation Answer: D) To provide identity to Indian residents

Explanation:

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Filed Under: Indian Politics

7 8031

Q:

The famous Dilwara Temples are situated in

A) Rajasthan	B) Uttar Pradesh
C) Maharashtra	D) Madhya Pradesh

Answer & Explanation Answer: A) Rajasthan

Explanation:

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Filed Under: Famous Places

23 8027

Q:

What kind of tree can you carry in your hand?

Answer

Palm tree.

Workspace

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Subject: Word Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO

15 8026

Q:

Who are the primary users of SCM systems?

A) Accounting, finance, logistics, and production	B) Customers, resellers, partners, suppliers, and distributors
C) Sales, marketing, customer service	D) All of the above

Answer & Explanation Answer: B) Customers, resellers, partners, suppliers, and distributors

Explanation:

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5 8020

Q:

Which statement best describes an $O_{3}$ molecule?

A) The double bond in ozone switches back and forth between the two outer oxygen atoms	B) An ozone molecule contains one single bond and one double bond
C) Each atom in ozone is connected to another atom by 1.5 bonds.	D) None

Answer & Explanation Answer: B) An ozone molecule contains one single bond and one double bond

Explanation:

Ozone molecule has one single bond and one double bond.

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Filed Under: General Science
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8 8018

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