Q:

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

Answer

Italy

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Subject: World Geography

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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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3 7830

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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Q:

Which of the following statements about monosaccharide structure is true?

A) Aldoses and ketoses differ in the position of their hydroxyl groups.	B) Monosaccharides can be classified according to the spatial arrangement of their atoms.
C) All monosaccharides contain carbon, hydrogen, oxygen, and nitrogen atoms.	D) A six-carbon sugar is called a pentose.

Answer & Explanation Answer: B) Monosaccharides can be classified according to the spatial arrangement of their atoms.

Explanation:

Monosaccharides, also called simple sugars, are the most basic units of carbohydrates. They are fundamental units of carbohydrates and cannot be further hydrolyzed to simpler compounds.

Hence, Monosaccharides can be classified according to the spatial arrangement of their atoms is true about Monosaccharides.

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Q:

Permanent hardness of water is due to the presence of ?

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

Answer & Explanation Answer: A) Calcium sulphate

Explanation:

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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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Q:

Which one of the following processes of weathering belongs to both mechanical and chemical weathering ?

A) Hydration	B) Exfoliation
C) Carbonation	D) Crystallization

Answer & Explanation Answer: D) Crystallization

Explanation:

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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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