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Q:

A true species in mauritius failed to reproduce because of the extinction of a fruit eating bird. Which one of the following was that bird?

A) Dove B) Dodo
C) Condor D) Skua
 
Answer & Explanation Answer: B) Dodo

Explanation:
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Filed Under: Biology

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Q:

 A proxy server is used for which of the following?

A) To provide security against unauthorized users B) To process client requests for Web pages
C) To process client requests for database access D) To provide TCP/IP
 
Answer & Explanation Answer: A) To provide security against unauthorized users

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Filed Under: Database

5 5197
Q:

The command to eliminate a table from a database is

A) REMOVE TABLE CUSTOMER; B) UPDATE TABLE CUSTOMER;
C) DELETE TABLE CUSTOMER; D) DROP TABLE CUSTOMER;
 
Answer & Explanation Answer: D) DROP TABLE CUSTOMER;

Explanation:

The SQL DROP TABLE statement is used to remove a table definition and all data, indexes,...

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Filed Under: Database
Exam Prep: AIEEE , Bank Exams
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36 5197
Q:

Which reaction occurs spontaneously?

A) Cl2(g) + 2NaF(aq)--> F2(g) + 2NaCl(aq) B) I2(s) + 2NaF(aq)--> F2(g) + 2NaI(aq)
C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq) D) I2(s) + 2NaBr(aq)--> Br2(l) + 2NaI(aq)
 
Answer & Explanation Answer: C) Cl2(g) + 2NaBr(aq)-->Br2(l) + 2NaCl(aq)

Explanation:

In this chemical reaction chlorine change oxidation number from 0 to -1 (reduction) and bromine change oxidation number from -1 to 0 (oxidation).

Chlorine is stronger oxidation reagent than bromine.

In VIIA or group 17 (halogen elements) there are six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) and tennessin(Ts).

They have high electronegativity because they have seven valence electrons in their outermost energy level, so they can gain an electron to have the octet rule.  

Going down in the group, element are weaker oxidazing reagent and less reactive.

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Filed Under: Chemistry
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2 5193
Q:

Which of the following countries have topped the list of foreign investors in real estate in Dubai according to Dubai Land Department?

A) British B) India
C) Pakistan D) US
 
Answer & Explanation Answer: B) India

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Filed Under: General Awareness

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Q:

Which is the only snake that builds nests?

A) Viper B) King Cobra
C) Anaconda D) Python
 
Answer & Explanation Answer: B) King Cobra

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Filed Under: Animals and Birds

19 5184
Q:

Answer the Following Puzzle.

Number Puzzles Questions and Answers

A) 5 B) 7
C) 9 D) 2
 
Answer & Explanation Answer: D) 2

Explanation:

Starting with the 10 at the top, one set of numbers increases by 3 each time, written in alternate boxes as you move down the diagram, and the other set of numbers decreases by 2,written in the boxes remaining

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Filed Under: Number Puzzles

12 5178
Q:

Learned indian classical vocalists do not like the accompaniment of a harmonium because 

A) tempered scale is used in the harmonium B) diatonic scale is used in the harmonium
C) notes of the harmonium are too shrill D) intensity of the notes of the harmonium is too large
 
Answer & Explanation Answer: A) tempered scale is used in the harmonium

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Filed Under: Physics

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