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 4786

Q:

The tributary of Rriver Indus which flows through Himachal Pradesh is

A) Sutlej	B) Beas
C) Ravi	D) Hunza

Answer & Explanation Answer: A) Sutlej

Explanation:

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Filed Under: Indian Geography

9 4785

Q:

The hardened material available on earth is

A) Gold	B) Diamond
C) Iron	D) Platinum

Answer & Explanation Answer: B) Diamond

Explanation:

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Filed Under: General Science

16 4785

Q:

The first space rocket to hit the moon was

A) Apollo II	B) Luna 9
C) Lunik 2	D) Zond 5

Answer & Explanation Answer: A) Apollo II

Explanation:

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Filed Under: General Awareness

4 4784

Q:

The act of violating the sanctity of the church is called Sacrilege.

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

The act of violating or misuse of what is regarded as sacred i.e, like the sanctity of the church is called Sacrilege.

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Subject: English
Exam Prep: AIEEE , Bank Exams , CAT , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO

4 4784

Q:

What does the Yajur Veda contain?

A) Only hymns	B) Spells and charms
C) Hymns and rituals	D) Commentaries on society

Answer & Explanation Answer: C) Hymns and rituals

Explanation:

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Filed Under: Indian History

3 4784

Q:

The local name Mohenjodara is

A) Mound of the Living	B) Mound of the Great
C) Mound of the dead	D) Mound of the survivor

Answer & Explanation Answer: C) Mound of the dead

Explanation:

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Filed Under: Indian History

3 4783

Q:

Which one of the following can be oxidised to the corresponding carbonyl compound:

A) 2-methyl-2-hydroxy propane	B) 2-hydroxy propane
C) o-Nitrophenol	D) Phenol

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