Q:

A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will

A) first rise and then fall	B) fall
C) remain the same	D) rise

Answer & Explanation Answer: C) remain the same

Explanation:

The submerged portion of the ice on melting shrinks a little in volume. so the level of water goes down a little.But this is just made up by the water added by the melting of upper portion. Addition is equal to the Shrinkage. Hence level is unchanged.

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Filed Under: Physics

15 7877

Q:

One who eats too much (one word substitute)

A) Glutten	B) Gourmand
C) Gannet	D) Garald

Answer & Explanation Answer: B) Gourmand

Explanation:

one_who_eats_too_much1554379850.jpg image

One who eats too much is called as Gourmand.

One who eats a lot is called as Gannet.

One who eats much more than they need is called as Glutton.

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

3 7869

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 7853

Q:

The four stages of the Deming Cycle are?

A) Plan, Measure, Monitor, Report	B) Plan, Check, Re-Act, Implement
C) Plan, Do, Act, Audit	D) Plan, Do, Check, Act

Answer & Explanation Answer: D) Plan, Do, Check, Act

Explanation:

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Filed Under: ITIL Certification

0 7852

Q:

Which element has similar properties to Beryllium?

A) Manganese	B) Calcium
C) Both A & B	D) Helium

Answer & Explanation Answer: B) Calcium

Explanation:

The elements in the same column will have similar properties. Beryllium is the group II element. Group II elements are magnesium, calcium, strontium, barium and radium. Hence, these show the similar prperties.

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

7 7850

Q:

What country is often described as being shaped like a boot?

Answer

Italy

Workspace

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Subject: World Geography

9 7850

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
Exam Prep: AIEEE , GATE
Job Role: Analyst , Bank PO

8 7850

Q:

Permanent hardness of water is due to the presence of ?

A) Calcium sulphate	B) Calcium bicarbonate
C) Sodium bicarbonate	D) Magnesium bicarbonate

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