Q:

Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?

(1) $K_{2} O < N a_{2} O < A l_{2} O_{3} < M g O$

(2) $A l_{2} O_{3} < M g O < N a_{2} O < K_{2} O$

(3) $M g O < K_{2} O < A l_{2} O_{3} < N a_{2} O$

(4) $N a_{2} O < K_{2} O < M g O < A l_{2} O_{3}$

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Answer & Explanation Answer: B) Option 2

Explanation:

While moving from left to right in periodic table basic character of oxide of elements will decrease.

$∴ \to_{I n c r e a \sin g b a s i c s t r e n g t h}^{A l_{2} O_{3} < M g O < N a_{2} O}$

and while descending in the group basic character of corresponding oxides increases.

$∴ \to_{I n c r e a \sin g b a s i c s t r e n g t h}^{N a_{2} O < K_{2} O}$

$∴ C o r r e c t O r d e r i s A l_{2} O_{3} < M g O < N a_{2} O < K_{2} O$

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Filed Under: Chemistry
Exam Prep: AIEEE

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Q:

'The Race of my Life' the Autobiography has been co-authored by Milkha Singh's daughter, whose name is ____ ?

A) Sonia Sanwalka	B) Mankhia Singh
C) Sanjitia Sardar	D) Poonam Dillo

Answer & Explanation Answer: A) Sonia Sanwalka

Explanation:

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Filed Under: Books and Authors
Exam Prep: AIEEE , Bank Exams
Job Role: Bank Clerk , Bank PO

13 4480

Q:

When is International Mother's Day is observed?

A) December 11	B) November 29
C) 2nd Sunday of May	D) Second Wednesday of October

Answer & Explanation Answer: C) 2nd Sunday of May

Explanation:

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Filed Under: Important Days and Years

4 4479

Q:

Concentrating the marketing efforts on one particular segment of consumers is known as ?

A) Ambush Marketing	B) Niche Marketing
C) Content Marketing	D) Cloud Marketing

Answer & Explanation Answer: B) Niche Marketing

Explanation:

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Filed Under: Marketing and Sales

6 4478

Q:

The world's largest river is the......

A) The Amazon	B) The Brahmaputra
C) The Mississippi and Missouri	D) The Nile

Answer & Explanation Answer: A) The Amazon

Explanation:

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Filed Under: World Geography

10 4477

Q:

Who of the following was the personal physician of Kanishka and also the author of a famous treatise on the Indian system of medicine

A) Charaka	B) Susruta
C) Nagarjuna	D) Jevaka

Answer & Explanation Answer: A) Charaka

Explanation:

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Filed Under: Indian History

2 4473

Q:

Find the logic and solve this mathematical puzzle?

solve_this_maths_puzzle1565956551.jpg image

A) 112	B) 72
C) 127	D) 144

Answer & Explanation Answer: D) 144

Explanation:

In the given puzzle, the logic is

2 + 3 = 10 => (2 + 3) * 2 = 10

6 + 3 = 54 => (6 + 3) * 6 = 54

8 + 3 = 88 => (8 + 3) * 8 = 88

Similarly,

9 + 7 => (9 + 7) * 9 = 16 x 9 = 144.

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Filed Under: Math Puzzles
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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26 4468

Q:

A cowboy arrives in town on Friday. He stays for 3 days and then leaves on Friday. How is that possible?

Answer

You will get the answer in the riddle itself, if you read the riddle carefully.

The riddle says "A cowboy arrives in town on Friday." So Friday is the name of the horse on which he comes. Hence, the only possibility is he arrives on the horse friday on Tuesday, stays for 3 days and leaves on the same horse on Friday.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

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