Q:

Water is an example of?

A) Element	B) Molecule
C) Compound	D) Both B & C

Answer & Explanation Answer: D) Both B & C

Explanation:

Why Water Is Not an Element :

An element is a substance consisting of only one type of atom. Water consists of two types of atoms: hydrogen and oxygen.

water is both a molecule and a compound :

A compound forms whenever two or more atoms form chemical bonds with each other. The chemical formula for water is H2O, which means each molecule of water consists of one oxygen atom chemically bonded to two hydrogen atoms.

Thus, water is a compound.

It's also a molecule, which is any chemical species formed by two or more atoms chemically bonded to each other. The terms molecule and compound mean the same thing and can be used interchangeably.

Hence, water is both a molecule and a compound.

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

1 7719

Q:

Who among the following has not received a Nobel Prize in literature

A) Derek Walcott	B) Pablo Neruda
C) Churchill	D) Ernest Hemingway

Answer & Explanation Answer: C) Churchill

Explanation:

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2 7717

Q:

Who was the only Secretary General of the UNO to have died while in office ?

A) Dag Hammarskjold	B) Trygve Lie
C) Kurt Waldhiem	D) U Thant

Answer & Explanation Answer: A) Dag Hammarskjold

Explanation:

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Exam Prep: CAT , Bank Exams
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5 7717

Q:

When three or more AND and OR conditions are combined, it is easier to use the SQL keyword(s):

A) LIKE only.	B) IN only.
C) NOT IN only.	D) Both IN and NOT IN.

Answer & Explanation Answer: D) Both IN and NOT IN.

Explanation:

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Filed Under: Database

2 7714

Q:

Which reforms act had created the office of the secretary of State for India?

A) Montague-Chelmsford Reforms	B) The Government of India Act, 1858
C) The Indian Councils Act,1861	D) Minto-Morley Reforms,1908

Answer & Explanation Answer: B) The Government of India Act, 1858

Explanation:

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Filed Under: Indian History

3 7714

Q:

The doctrine of three jewels- Right belief, Right conduct and Right Knowledge- is the crownings glory of

A) Buddhism	B) Christianity
C) Jainism	D) None of these

Answer & Explanation Answer: C) Jainism

Explanation:

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Filed Under: Indian History

11 7710

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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Exam Prep: AIEEE

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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

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