Q:

The main element used in the vulcanisation of rubber is

A) nickel	B) copper
C) sulphur	D) graphite

Answer & Explanation Answer: C) sulphur

Explanation:

In vulcanization, cruder rubber is heated with 3% sulphur at about for $120^{0} C$ for 2-3 hours.

Vulcanised rubber is a vastly improved product.

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Filed Under: Chemistry
Exam Prep: AIEEE , GATE

9 8213

Q:

Which ruler of Vijayanagar allowed the Portuguese to build a church in his empire?

A) Venkat II	B) Achyut Rai
C) Thirumal	D) Krishna Deva Rai

Answer & Explanation Answer: A) Venkat II

Explanation:

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Filed Under: Indian History
Exam Prep: Bank Exams

2 8213

Q:

What has a head and a tail but nobody?

Answer

A Coin has a Head and tail but no body. Since the two sides of coin are called as heads and tails.

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

11 8212

Q:

Who among the following was the first Indian to receive the Templeton Award?

A) Baba amte	B) Mother teresa
C) Dr. S. Radhakrishnan	D) Vinoba bhave

Answer & Explanation Answer: C) Dr. S. Radhakrishnan

Explanation:

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Filed Under: Honours and Awards

4 8209

Q:

Which solution has the highest pH?

A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)	B) 50.0 mL 0.0500 M sodium hydroxide, NaOH (aq)
C) 50.0 mL 0.0500 M nitric acid, HNO3 (aq)	D) 50.0 mL 0.0500 M nitrous acid, HNO2 (aq)

Answer & Explanation Answer: A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)

Explanation:

50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) has the highest pH value.

Sodium hydroxide and Calcium hydroxide are strong bases so they completely ionize in solution. Because they ionize at the same rate, and Calcium hydroxide has the higher pH calculated, then Calcium hydroxide, in fact, has the highest pH.

Nitric acid is a strong acid, so it completely ionizes in water. Whilst nitrous acid is a weak acid. Therefore, the nitric acid solution has the LOWEST ph.

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Filed Under: Chemistry
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Job Role: Analyst , Bank Clerk , Bank PO

8 8207

Q:

Rearrange the parts of the sentence in correct order.

I am not demanding

P-a set of ethical scripts whose
Q-political possibilities could be played out
R-a census of atrocity but

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

Answer & Explanation Answer: C) RPQ

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 8207

Q:

Which country has world's shortest written constitution?

A) USA	B) Monaco
C) Vatican City	D) India

Answer & Explanation Answer: B) Monaco

Explanation:

Monaco, the world's second smallest country after Vatican City, has the smallest written constitution in the world.

It comprises of 10 chapters with 97 Articles and a total of 3,814 words.

India has the world's largest written constitution.

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Filed Under: General Awareness
Exam Prep: CAT , Bank Exams

5 8204

Q:

The oldest dynasty still ruling in which country ?

A) India	B) Iran
C) Japan	D) England

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