Q:

Logical puzzle

Two fathers took their sons to a fruit stall. Each man and son bought an apple, But when they returned home, they had only 3 apples. They did not eat, lost, or thrown. How could this be possible?

Answer

There were only three people. Son, his father and his grandfather.

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Subject: Logic Puzzles

28 6170

Q:

Which atom has the largest radius?

A) Neon	B) Francium
C) Helium	D) Cesium

Answer & Explanation Answer: B) Francium

Explanation:

which_atom_has_the_largest_radius1537434800.gif image

In the periodic table, the atomic radius increases from top to bottom in the groups and it increases from right to left in the periods.

Francium is the atom with largest atomic radius. Helium is the atom with smallest radius.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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3 6168

Q:

Trichloroacetaldehyde was subject to Cannizzaro's reaction by using NaOH. The mixture of the products contains sodium trichloroacetate and another compound. The other compound is :

A) Chloroform	B) 2, 2, 2-Trichloroethanol
C) Trichloromethanol	D) 2, 2, 2-Trichloropropanol

Answer & Explanation Answer: B) 2, 2, 2-Trichloroethanol

Explanation:

$\begin{matrix} C l \\ | \\ C l & - & C & - & C H O \\ | \\ C l \end{matrix}$ $\to_{C a n n i z z a r o' s R e a c t i o n}^{N a O H}$ $\begin{matrix} C l \\ | \\ C l & - & C & - & C O O N a \\ | \\ C l \end{matrix}$ $+$ $\begin{matrix} C l \\ | \\ C l & - & C & - & C H_{2} \\ | 2 & 1 \\ C l \end{matrix}$ $- O H$

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Filed Under: Chemistry
Exam Prep: AIEEE

7 6167

Q:

World Red cross day falls on

A) May 3	B) May 8
C) May 10	D) May 11

Answer & Explanation Answer: B) May 8

Explanation:

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Filed Under: Important Days and Years

9 6166

Q:

What type of operating system uses the NTFS file system ?

A) Windows	B) Mac OS X
C) Unix	D) All of these

Answer & Explanation Answer: A) Windows

Explanation:

Windows operating system uses the NTFS file system.

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Filed Under: Operating Systems
Exam Prep: Bank Exams

5 6164

Q:

The instrument used to measure blood pressure?

A) Sphygmomanometer	B) Manometer
C) Thermometer	D) Stethescope

Answer & Explanation Answer: A) Sphygmomanometer

Explanation:

the_instrument_used_to_measure_blood_pressure1538215434.jpg image

The Sphygmomanometer is the instrument that is used for measuring blood pressure.

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Filed Under: General Awareness
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3 6164

Q:

Which among the following temples of India is known as "Black Pagoda" ?

A) Brihadeeshwara Temple, Tanjore	B) Sun Temple, Konark
C) Meenakshi Temple, Madurai	D) Jagannath Temple, Puri

Answer & Explanation Answer: B) Sun Temple, Konark

Explanation:

Konark Sun Temple is a 13th century temple of Odisha, built by Narasimhadeva I of the Eastern Ganga Dynasty. It is also known as Black Pagoda. It’s a World Heritage Site. It is considered as architectural marvel for which Odisha, best known worldwide.

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Filed Under: Indian Culture
Exam Prep: Bank Exams , CAT
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79 6164

Q:

A transitive dependency is which of the following?

A) A functional dependency between two or more key attributes.	B) A functional dependency between two or more nonkey attributes.
C) A relation that is in first normal form.	D) A relation that is in second normal form.

Answer & Explanation Answer: B) A functional dependency between two or more nonkey attributes.

Explanation:

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Filed Under: Database

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