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 4510

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 4508

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

7 4507

Q:

The granting of fundamental rights to citizens aims at ensuring ?

A) Socialistic government	B) Individual liberty
C) An Independent judiciary	D) None of the above

Answer & Explanation Answer: B) Individual liberty

Explanation:

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Filed Under: Indian Politics
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

10 4506

Q:

The main brain behind hurling a bomb at Lord Hardinge, while he was making his state entry into Delhi was

A) Ras Behari Bose	B) Bhagath singh
C) Sachindra Sanyal	D) Jatin Das

Answer & Explanation Answer: A) Ras Behari Bose

Explanation:

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Filed Under: Indian History

3 4505

Q:

Which of the following is usually not considered a goal of portfolio management?

A) To manage the effective and efficient use of resources.	B) To balance the portfolio among incremental and radical investments.
C) To maximize the value of the portfolio by careful examination of candidate projects and exclusion of those no meeting strategic objectives.	D) To ensure that the relationship between projects in the portfolio clearly reflects strategic objectives.

Answer & Explanation Answer: D) To ensure that the relationship between projects in the portfolio clearly reflects strategic objectives.

Explanation:

There is not necessarily a relationship between projects in a portfolio. Answer D is actually one of the goals of PROGRAM management. PMBOK Guide [1.4]

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Filed Under: PMP Certification

0 4501

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 4501

Q:

What are the particles emitted by radio active element after 3 consequtive disintegrations?

A) 2 alpha 1 beta	B) 1 alpha 1 beta
C) 2 beta 1 alpha	D) 2 beta 2 alpha

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