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- Question
An atom has 7 electrons in its M - shell and contains 18 neutrons in its nucleus. What is its mass number
Options- A. 25
- B. 27
- C. 35
- D. 43
- Correct Answer
- 35
ExplanationAccording to Bohr model, Each shell can occupy 2 electrons in their orbits where n=1,2,3.. for K,L,M,..
The atom has 2 electrons in k, 8 electrons in L and 7 electrons in M = 2 + 8 + 7 = 17
And given that its nucleus has 18 neutrons
=> its mass number = number of (electrons + neutrons ) = 17 + 18 = 35
- 1. The water fall, with the highest fall in india, is the
Options- A. Jog Falls, Karnataka
- B. Courtallam Falls, Tamil Nadu
- C. Beraghat Falls, Madhya pradesh
- D. Ettipotala Falls, Andhra pradesh Discuss
- 2. In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. Ifa sentence is free from error, select 'No Error'. Sneha was accused for murder of her husband (1)/ but the court found her (2)/ not guilty and acquitted her. (3)/ No Error (4)
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 3. In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. For me the ______________ and the chill of those nights dissolved into those little flames of fire that for hours made us live in a wonderland, in a ___________ fair of fireflies, and made us _________ there?s nothing that can blow those divine lights ________. In my mind I can still hear the jingling sounds of ________ tiny bells that grandma used to ring during the puja. and made us _________ there?s nothing that can blow
Options- A. belief
- B. believe
- C. believably
- D. beliefs Discuss
- 4. When and where was Islam founded? Discuss
- 5. The internet was created to provide
Options- A. A secure form of communications
- B. A common communications means for all computers
- C. Both A & B
- D. None of the above Discuss
- 6. In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. For me the ______________ and the chill of those nights dissolved into those little flames of fire that for hours made us live in a wonderland, in a ___________ fair of fireflies, and made us _________ there?s nothing that can blow those divine lights ________. In my mind I can still hear the jingling sounds of ________ tiny bells that grandma used to ring during the puja. those divine lights ________. In my mind I can
Options- A. from
- B. of
- C. for
- D. off Discuss
- 7. What is the basic foundation of neoclassical literature?
Options- A. Artistic values of ancient Greece and Rome
- B. Puritan philosophy
- C. Enlightenment theory
- D. Anti-Renaissance thought Discuss
- 8. Hard Drive capacity is measured in
Options- A. Newton
- B. GB
- C. THz
- D. Gwallior Discuss
- 9. In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. For me the ______________ and the chill of those nights dissolved into those little flames of fire that for hours made us live in a wonderland, in a ___________ fair of fireflies, and made us _________ there?s nothing that can blow those divine lights ________. In my mind I can still hear the jingling sounds of ________ tiny bells that grandma used to ring during the puja.
Options- A. these
- B. this
- C. those
- D. that Discuss
- 10. The first history book was written by
Options- A. Thucidides
- B. Aristotle
- C. Herodotus
- D. Euclid Discuss
More questions
Correct Answer: Jog Falls, Karnataka
Explanation:
The Sharavati river in Karnataka state of india drops 253 metresin four separate falls named- the Raja, the Rani, the Rocket and the Roarer -together known as jog falls.
Correct Answer: 1
Correct Answer: believe
Correct Answer: In the early 7th century, 610 AD Islam was founded and Prophet Muhammad was accredited for its origin It is beleived that it was first origined in Mecca and Medina
Correct Answer: Both A & B
Explanation:
The internet was created to provide a secure form of communications and a common communications means for all computers.
Correct Answer: off
Correct Answer: Artistic values of ancient Greece and Rome
Correct Answer: GB
Explanation:
Hard drive or disc is used to store the users information and its capacity is measured in Giga Bytes (GB) and Tera Bytes (TB).
Correct Answer: those
Correct Answer: Herodotus
Explanation:
The first history book was written by Herodotus around 5th century B.C.
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