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Q:

Which scientist established the Law of Octaves?

A) John Newlands B) Antoine Lavoisier
C) Alfred Nobel D) Marie Curie
 
Answer & Explanation Answer: A) John Newlands

Explanation:

Law of Octaves states that "If the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements." That is every 8th element have the same physical and chemical properties. This was established by the British scientist John Newlands in the year 1865.

Which_scientist_established_the_Law_of_Octaves1559374791.jpg image

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Filed Under: Chemistry
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Q:

Which battle established British supremacy in India?

A) The Battle of Buxar B) The Battle of Plassey
C) The Battle of Mysore D) The Battle of Samergarh
 
Answer & Explanation Answer: B) The Battle of Plassey

Explanation:

The Battle of Plassey in the year 1757, victory of British East India company over Nawab of Bengal established British supremacy in India. The victory came under the leadership of Robert Clive.

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Filed Under: Indian History
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Q:

Which of the following requires one byte of storage?

A) Character B) Sentence
C) Page D) Paragraph
 
Answer & Explanation Answer: A) Character

Explanation:

A Unicode character requires between one and four bytes of storage, depending on the encoding format used. Hence, a character requires one byte of storage.

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Filed Under: Computer
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Q:

Which ionization process requires the most energy?

A) C3+ (g) → C4+ (g) + e- B) C (g) → C+ (g) + e-
C) C2+ (g) → C3+ (g) + e- D) C+ (g) → C2+ (g) + e-
 
Answer & Explanation Answer: A) C3+ (g) → C4+ (g) + e-

Explanation:

We know that each successive IE is greater than the previous one, because each ionization process removes one electron and hence increases the total attractive force on the remaining electrons from the nucleus. Hence, C3+ (g) → C4+ (g) + e- needs more energy.

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Filed Under: Chemistry
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Q:

Visceral pain usually starts in which of the following?

A) Kidneys B) Abdomen
C) Rectum D) Esophagus
 
Answer & Explanation Answer: B) Abdomen

Explanation:

Visceral pain is a poorly localized, dull, or diffuse pain. It usually arises from the abdominal organs.

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Filed Under: Biology
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Q:

Which legendary cricketer has made his debut as a commentator in the opening match of World Cup 2019?

A) Sachin Tendulkar B) Saurav Ganguly
C) Virendar Sehwag D) Rahul Dravid
 
Answer & Explanation Answer: A) Sachin Tendulkar

Explanation:
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Q:

Which occurred during the Bataan Death March in 1942?

A) Thousands of US and Filipino prisoners of war died B) US soldiers attacked Japanese troops to rescue Filipino allies
C) Japanese soldiers helped carry starving US and Filipino prisoners of war D) Thousands of Japanese soldiers died of starvation
 
Answer & Explanation Answer: A) Thousands of US and Filipino prisoners of war died

Explanation:

Thousands of US and Filipino prisoners of war died as they are marched to death by Japanese Military in 1942.

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Filed Under: World History
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Q:

Which is the first national park established in India?

A) Kanha National Park B) Keoladeo National Park
C) Jim Corbett National Park D) Jaldapara National Park
 
Answer & Explanation Answer: C) Jim Corbett National Park

Explanation:

Which_is_the_first_national_park_established_in_India1559301595.jpg image

Jim Corbett National Park is the oldest national park in India and was established in 1936 as Hailey National Park to protect the endangered Bengal tiger. It is located in Nainital district of Uttarakhand and was named after Jim Corbett, a well known hunter and naturalist. The park was the first to come under the Project Tiger initiative.

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Filed Under: Indian Geography
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