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 8577

Q:

In which of the following fields Prof. Malcolm Adiseshiah earned worldwide distinction?

A) Literature	B) Medicine
C) Economics	D) Nuclear physics

Answer & Explanation Answer: C) Economics

Explanation:

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Filed Under: General Awareness

31 8570

Q:

Teachers day is celebrated in memory of

A) Dr. Rajendra Prasad	B) Sir Vallabhai Patel
C) Dr. Sarvepalli Radhakrishnan	D) Jawaharlal Nehru

Answer & Explanation Answer: C) Dr. Sarvepalli Radhakrishnan

Explanation:

Every year 5th September is celebrated as Teacher's Day in India, in the memory of Dr. Sarvepalli Radhakrishnan's birthday. He was the first vice-president and second president of India.

Teachers_day_is_celebrated_in_memory_of1536127626.jpg image

After he become the president of India, his students want to celebrate his birthday in grand but he refused and he adviced them to celebrate that day as teachers day. From then, 5th September is celebrated as Teacher's Day.

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

2 8567

Q:

The Constitution of India was completed on

A) Feb 11,1948	B) Nov 26, 1949
C) Jan 26, 1950	D) None of these

Answer & Explanation Answer: B) Nov 26, 1949

Explanation:

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Filed Under: Indian Politics

14 8567

Q:

19 C in a CB

Answer

19 C in a CB means 19 Coins in a Carrom Board.

We have 9 white coins, 9 black coins and one red coin in a carrom board.

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

19 8565

Q:

Peace, discipline, freedom and equality are all examples of

peace_discipline_freedom_and_equality_are_all_examples_of1538653767.jpg image

A) Democratic values	B) Resolutions
C) Myths	D) Settings

Answer & Explanation Answer: A) Democratic values

Explanation:

Peace, discipline, freedom and equality are all examples of human values or democratic values which all the people want to be in them for society.

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Filed Under: Indian Politics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

4 8564

Q:

Web based complaints redressal system 'SCORES' is launched by which of the following organizations/agencies?

A) IBA	B) SEBI
C) State Bank of India	D) Ministry of Corporate Affairs

Answer & Explanation Answer: B) SEBI

Explanation:

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Filed Under: General Awareness

22 8556

Q:

Who amongst the following is a famous Sarod player

A) Zakir Hussain	B) Hari Prasad Chourasia
C) Ram Narain	D) Amjad Ali Khan

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