Q:

Formation of shadows can be explained by

A) rectilinear propagation of light	B) reflection
C) refraction	D) total internal reflection

Answer & Explanation Answer: A) rectilinear propagation of light

Explanation:

In this position, the head light will be at the principal focus so that the rays of light falling on the cancave mirror will be rendered parallel

Report Error

View Answer Report Error Discuss

Filed Under: Physics

63 9002

Q:

The fundamental particles present in equal numbers in neutral atoms are

A) protons and electrons	B) neutrons and electrons
C) protons and neutrons	D) protons and positrons

Answer & Explanation Answer: A) protons and electrons

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

17 9001

Q:

Nature of unemployment in agriculture in India is

A) Seasonal	B) Disguised
C) both ' a ' and ' b '	D) None of these

Answer & Explanation Answer: C) both ' a ' and ' b '

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Indian Economy

9 8991

Q:

Read the following information and answer the questions given below:

A has 28 elements, B has 32 elements and A U B has 40 elements.

How many elements does A $\cap$ B have?

A) 12	B) 8
C) 10	D) 20

Answer & Explanation Answer: D) 20

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Quantitative Aptitude - Arithmetic Ability

0 8991

Q:

Which of the following carbon compounds is used as a fire- extinguisher?

A) Carbon disulphide	B) Chloroform
C) Carbon tetrachloride	D) Methyl ene chloride

Answer & Explanation Answer: C) Carbon tetrachloride

Explanation:

Vapour of carbon tetra chloride $(c c l_{4})$ is non-inflammable and is heavier than air. Hence it is used as a fire extinguisher under the trade name of pyrene.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

16 8985

Q:

The outer electron configuration of Gd (Atomic No : 64) is

1. $4 f^{7} 5 d^{1} 6 s^{2}$

2. $4 f^{3} 5 d^{5} 6 s^{2}$

3. $4 f^{8} 5 d^{0} 6 s^{2}$

4. $4 f^{4} 5 d^{4} 6 s^{2}$

Answer

Answer : 1

Sol :

1. $4 f^{7} 5 d^{1} 6 s^{2}$

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Chemistry Exam Prep: AIEEE

19 8985

Q:

Which of the following is not a compound?

A) Brass	B) Quick lime
C) Marble	D) Soda ash

Answer & Explanation Answer: A) Brass

Explanation:

Among the given options Brass is not a compound. Since it is an alloy, it is a mixture. It is a mixture of copper and zinc.

Which_of_the_following_is_not_a_compound1558074260.jpg image

The smallest part of a compound is called a molecule. It has a unique composition that is always the same.

Compound is a substance that consists of two or more elements.

Report Error

View Answer Report Error Discuss

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

12 8983

Q:

Which of the following statements is Incorrect?

A) The particles of matter have spaces between them	B) The particles of matter are extremely small
C) The particles of matter attract each other	D) The particles of matter are in stationary state

Answer & Explanation Answer: D) The particles of matter are in stationary state

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 8982

Questions

Quick Links