Questions

Q:

Which half reaction correctly represents reduction?

A) Fe2+ + e- ---> Fe3+ B) Au3+ + 3e– ---> Au
C) Ag ---> Ag+ + e- D) All of the above
 
Answer & Explanation Answer: B) Au3+ + 3e– ---> Au

Explanation:

A half reaction is either the oxidation or reduction reaction component of a redox reaction. A half reaction is obtained by considering the change in oxidation states of individual substances involved in the redox reaction.

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

0 3544
Q:

Wild animals are not considered a natural resource.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

The given statement is False. Wild animals are considered as a natural resource.


Natural resources are resources taken from nature to satisfy our needs. These natural resources are:


1) Air


2) Water


3) Soil


4) Plants


5) Animals


6) Minerals


7) Forests


8) Natural Gas


9) Coal


10) Petroleum.

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Subject: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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1 3542
Q:

For accurate scientific work, temperatures are often measured by

A) mercury thermometers B) alcohol thermometers
C) platinum resistance thermometers D) thermoelectric thermometers
 
Answer & Explanation Answer: C) platinum resistance thermometers

Explanation:

The resistance of metallic conductors e.g, platinum, increases with rise of  temperature . The increase in temperature results in a decrease of current which can be recorded in a galvanometer if the conductor is included in an electrical circuit. Thus the temperature can be known; platinum resistance thermometer is used generally for accurate scientific work. When two dissimilar metals are joined at the ends, and these ends are subjected to a difference of temperature, a current flows through the metals. Greater the difference of temperature , greater the current. So the curent strength can form the basis for measuring the difference in temperature. And when one of these temperatures is known, we can calculate the other.

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Filed Under: Physics

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Q:

The Governament of India has decided to declare which of the following rivers as ' national River '

A) Ganga B) Yamuna
C) Kaveri D) None of these
 
Answer & Explanation Answer: A) Ganga

Explanation:
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Filed Under: Indian History

2 3542
Q:

Which of the following is true?

A) It is appropriate to use assertions to validate arguments to methods marked public B) It is appropriate to catch and handle assertion errors
C) It is NOT appropriate to use assertions to validate command-line arguments D) None
 
Answer & Explanation Answer: C) It is NOT appropriate to use assertions to validate command-line arguments

Explanation:

A is incorrect. It is acceptable to use assertions to test the arguments of private methods.

 

B is incorrect. While assertion errors can be caught, Sun discourages you from doing so.

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Filed Under: Programming

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Q:

All of the following are true of neurons except that

A) they conduct a nervous impulse B) they are a very specialized form of connective tissue
C) thay are separated from one another by synapses D) When mature, they lose ability to divide
 
Answer & Explanation Answer: B) they are a very specialized form of connective tissue

Explanation:

All of the following are true of neurons except that they are a very specialized form of connective tissue.

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Filed Under: Biology
Exam Prep: AIEEE
Job Role: Analyst

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Q:

What has triggered the need for multitasking in PCs?

Answer

1. Increased speed and memory capacity of microprocessors together with the support for virtual memory and


2. Growth of client server computing

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1 3539
Q:

The hormone that helps in the implantation of embryo

A) Testosterone B) Insulin
C) Prolactin D) Progesterone
 
Answer & Explanation Answer: D) Progesterone

Explanation:
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Filed Under: Biology

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