Q:

Select the synonym of

to concoct

A) to obliterate	B) to contrive
C) to decimate	D) to pulverize

Answer & Explanation Answer: B) to contrive

Explanation:

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Q:

Match List -I with List -II and select the correct answer using the code given below the Lists :

List -I List-II

(Compound/Molecule) (Shape of Molecule)

A. CH3F 1. Trigonal planar

B. HCHO 2. Tetrahedral

C. HCN 3. Trigonal pyramidal

D. NH3 4. Linear

A) 2 4 1 3	B) 2 1 4 3
C) 3 4 1 2	D) 3 1 4 2

Answer & Explanation Answer: B) 2 1 4 3

Explanation:

HCHO: The carbon and and the oxygen are bonded through a double bond which counts as "one electron pair". Hence the molecule has three electron pairs and is trigonal planar.

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0 13278

Q:

Which of the following is based on the principle of nuclear fusion?

A) Atomic bomb	B) Hydrogen bomb
C) Both Atomic and Hydrogen bomb	D) No option is correct

Answer & Explanation Answer: B) Hydrogen bomb

Explanation:

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Q:

The oldest type of energy known to man is _____?

A) Geothermal Energy	B) Solar Power
C) Wind Power	D) Tidal Power

Answer & Explanation Answer: A) Geothermal Energy

Explanation:

Geothermal energy is heat energy generated and stored in the Earth. Geothermal energy has been used for thousands of years in some countries for cooking and heating. It is simply power derived from the Earth's internal heat.

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Q:

October 24 is observed as

A) World Vegetarian Day	B) United Nations Day
C) World Immunization Day	D) World Environment Day

Answer & Explanation Answer: B) United Nations Day

Explanation:

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Q:

Improve the bracketed part of the sentence.

If you come across new words, you should look (them up) in the dictionary.

A) for them	B) at them
C) them down	D) no improvement

Answer & Explanation Answer: D) no improvement

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0 13260

Q:

Ashtadhyayi was written by

A) Ved vysa	B) Panini
C) Shukadeva	D) Balmiki

Answer & Explanation Answer: B) Panini

Explanation:

Ashtadhyayi was written by Panini. He was a Sanskrit grammarian who gave a comprehensive and scientific theory of phonetics, phonology, and morphology. Panini was born in Shalatula, a town near to Attock on the Indus river in present day Pakistan.

Ashtadhyayi_was_written_by1565176023.jpg image

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13 13256

Q:

What is the IUPAC name of [Co(NH3)4Cl2]?

A) Tetra-ammine dichloro cobalt (III) chloride	B) Tetra-ammine trichloro cobalt (III)
C) Tri-ammine dichloro cobalt (III) chloride	D) Tetra-ammine dichloro cobalt

Answer & Explanation Answer: A) Tetra-ammine dichloro cobalt (III) chloride

Explanation:

The IUPAC nomenclature in organic chemistry is a systematic method that is used to name organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).

The IUPAC name of the given complex [Co (NH₃)₄Cl₂ ]Cl is - Tetra-ammine dichloro cobalt (III) chloride.

The complex [Co (NH₃)₄ Cl₂ ] Cl ionizes an aqueous solution to furnish the chloride ion Cl⁻ and [Co (NH₃)₄ Cl₂ ] ⁺.

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