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

14 4487

Q:

Iam looking to estimate the cost on a project, but I don't want to spend a lot of time on a detailed analysis. I really want a ballpark figure. What options do I have?

A) None - Cost estimating requires details to be accurate	B) Use the cost of similar projects
C) Use a rule-of-thumb or per-square-foot estimate	D) Add up the costs on the WBS

Answer & Explanation Answer: B) Use the cost of similar projects

Explanation:

Although it is less accurate than adding up individual costs from the WBS, it is less time consuming. The trade-off is accuracy. Answer A is incorrect because to do a more accurate cost estimate, you need to delve into details. Answer C is tempting also, and possible, except we don't really know if the project in question can use perametric modeling . Answer D is incorrect because it takes the most time, but it is most accurate.

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Filed Under: PMP Certification

0 4486

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 4483

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 4482

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 4481

Q:

Rearrange the parts of the sentence in correct order.

Earlier its forays

P-were concentrated on ancient
Q-and medieval India
R-in history

A) RPQ	B) RQP
C) PQR	D) QPR

Answer & Explanation Answer: A) RPQ

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 4481

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 4480

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

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