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Q:

An element X forms an oxide XO_{_{3}}, what ihe valency of X

A) 1 B) 2
C) 3 D) 6
 
Answer & Explanation Answer: D) 6

Explanation:
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Filed Under: Chemistry

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Q:

What type of mirror is used in car headlights?

A) Concave B) convex
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) Concave

Explanation:

Concave type of glasses are used in the headlights of the vehicles as the light from the bulb which is at focus will converges out and spreads and reflects back parallely.

 

What_type_of_mirror_is_used_in_car_headlights1535545831.jpg image

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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 grouping of blood is based on substances called 

A) antibodies B) antigens
C) antitoxin D) enzymes
 
Answer & Explanation Answer: B) antigens

Explanation:

The red blood corpuscles  or erythrocytes usually carry antigens and there are two types of antigens. The A group persons have antigen A in their red corpuscles and the B group have antigen B in their red corpuscles. The AB group person have both antigen A and antigen B in their erythrocytes. The 'O' group persons have no antigens in their red corpuscles.

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Filed Under: Biology

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Q:

The Attorney-General of India is appointed by________

A) The president of India B) The Prime Minister
C) The Chief Justice of India D) The UPSC
 
Answer & Explanation Answer: A) The president of India

Explanation:
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Filed Under: Indian Politics

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Q:

Which player has become the first left-arm spinner to take 400 wickets in Test cricket ?

A) Ravindra Jadeja B) Mitchell Starc
C) Rangana Herath D) Kuldeep Yadav
 
Answer & Explanation Answer: C) Rangana Herath

Explanation:
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Filed Under: Sports
Exam Prep: AIEEE , Bank Exams
Job Role: Bank Clerk

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Q:

Study of the sun is called

A) Coronagraphy B) Seismography
C) Helioseismology D) Heliography
 
Answer & Explanation Answer: C) Helioseismology

Explanation:

Helioseismology is the study of the solar interior using observations of waves on the Sun's surface. It has done much to improve our understanding of the interior of the Sun, testing the physical inputs used to model stellar interiors and providing a detailed map of the Sun's structure and internal rotation.

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Filed Under: General Science
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Q:

The energy stored in photosynthesis is obtained from

A) Sunlight B) Oxidation of glucose
C) Breakdown of proteins D) breakdown of glucose
 
Answer & Explanation Answer: A) Sunlight

Explanation:
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Filed Under: Biology

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Q:

How would you free the memory allocated by the following program?

#include "alloc.h"

#define MAXROW 3

#define MAXCOL 4

main()

{

     int **p, i;

     p = (int **) malloc (MAXROW * sizeof (int *));

      for ( i = 0; i < MAXROW ; i++)

            p[i] = (int *) malloc (MAXCOL * sizeof (int ));

}

Answer

for ( i=0; i < MAXROW ; i++)


free (p[i]);


free (p);

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Subject: Programming

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