Q:

The lotus temple in Delhi is a house of worship of which of the following religions ?

A) Buddhism	B) Baha'i Religion
C) Zoroastrian	D) Islam

Answer & Explanation Answer: B) Baha'i Religion

Explanation:

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Filed Under: Indian History

34 8364

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 8357

Q:

In which country Aztec civilization was originated ?

A) Greece	B) USA
C) Mexico	D) Egypt

Answer & Explanation Answer: C) Mexico

Explanation:

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Filed Under: World History

25 8355

Q:

Which compound contains both ionic and covalent bonds?

A) NaNO3	B) CaSO4
C) NH4Cl	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

Here all the given compounds have both ionic and covalent bonds.

NaNO3 - In Sodium nitrate, Nitrate is covalently bonded as nitrogen is bonded with 3 oxygen atoms. And this nitrate is ionically bonded with sodium.

CaSO4 - In Calcium sulphate, sulphate is covalently bonded as sulphur is bonded with 4 oxygen atoms. And this sulphate is ionically bonded with calcium.

NH4Cl - In Ammonium chloride, ammonium is covalently bonded as nitrogen is bonded with 4 hydrogen atoms. And this ammonium is ionically bonded with chlorine.

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

5 8354

Q:

The rank of the different Ministers in the Union Council of Ministers is determined by the

A) President	B) Prime Minister
C) Cabinet Secretary	D) Speaker of the Lok Sabha

Answer & Explanation Answer: B) Prime Minister

Explanation:

The rank of the different ministers is determined by the Prime Minister, according to whose advice the President appoints the Ministers [ Art 75(1) ] and also allocates business among them [ Art 77 ].

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Filed Under: Indian Politics

18 8347

Q:

Modern periodic table is based on atomic number of the elements. The significance of atomic number was proved by the experiment of ________

A) Moseley's work on X-ray spectra	B) Bragg's work on X-ray diffraction
C) Mulliken's oil drop experiment	D) Discovery of X-ray by Roentgen

Answer & Explanation Answer: A) Moseley's work on X-ray spectra

Explanation:

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Filed Under: Chemistry

8 8345

Q:

A heavenly body which takes nearly the same time to complete one rotation and one revolution is

A) an asteroid	B) a comet
C) moon	D) mars

Answer & Explanation Answer: C) moon

Explanation:

This is the reason why we see the same side of the moon always

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Filed Under: World Geography

11 8343

Q:

What is the motto Incorporated under our National Emblem?

A) Satyam Shivam	B) Satyam Shivam Sundaram
C) Satyameva Jayate	D) Jai Hind

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