Questions

Q:

Which one of the following elements cannot be detected by "Lassaigne's test"?

A) I B) Cl
C) S D) F
 
Answer & Explanation Answer: D) F

Explanation:

The sodium fusion test, or Lassaigne's test, is used in elemental analysis for the qualitative determination of the presence of foreign elements, namely halogens, nitrogen, and sulphur, in an organic compound. It was developed by J. L. Lassaigne.Silver fluoride is soluble in water and does not precipitate and thus this method cannot be used for detection of fluorine.

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Biogeochemical cycles are crucial to ecosystem function because

A) they keep the planet warm enough for living things to survive B) energy flows through ecosystems in one direction only and is eventually dissipated as heat
C) they prevent catastrophic extinctions D) nutrients and other life-sustaining molecules are in limited supply and must be continually recycled
 
Answer & Explanation Answer: D) nutrients and other life-sustaining molecules are in limited supply and must be continually recycled

Explanation:

Biogeochemical cycles are crucial to ecosystem function because ::

 

1. Chemical elements are available in only limited amounts and must be recycled.

2. Nutrients and other life-sustaining molecules are in limited supply and must be continually recycled.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

The SQL keyword BETWEEN is used:

A) for ranges B) as a wildcard
C) to limit the columns displayed D) All the above
 
Answer & Explanation Answer: A) for ranges

Explanation:

In SQL, BETWEEN Keyword is used for ranges like Number Ranges, Date Ranges, etc...

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Q:

Instrument for measuring time is called _____ .

A) Diagometer B) Anemometer
C) Durometer D) Chronometer
 
Answer & Explanation Answer: D) Chronometer

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Why is DNA called the blueprint of life?

Answer

DNA is called the blueprint of life because it contains the instructions needed for an organism to grow, develop, survive and reproduce. DNA does this by controlling protein synthesis. Proteins do most of the work in cells, and are the basic unit of structure and function in the cells of organisms.

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Subject: Biology Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk

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Q:

Which of these liquids has the highest viscosity?

A) Milk B) Syrup
C) Pineapple juice D) Water
 
Answer & Explanation Answer: B) Syrup

Explanation:

The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness".

Here in the given options, syrup has the highest viscosity.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

Which of the following decade is celebrated as United Nations Decade for Women

A) 1997-2006 B) 2001-2010
C) 1976-1985 D) 2003-2012
 
Answer & Explanation Answer: C) 1976-1985

Explanation:
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Filed Under: Honours and Awards

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Q:

Name venue of the closing cermony of the commonwealth Games 2010

A) Jawaharlal Nehru Stadium B) Indira Gandhi sports complex
C) Siri Fort Sports Complex D) Thyagaraj Sports complex
 
Answer & Explanation Answer: A) Jawaharlal Nehru Stadium

Explanation:
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Filed Under: Sports

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