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 15423

Q:

During whose reign did Timur invaded India?

A) Allauddin Khilji	B) Bahlol Lodi
C) Firoz Tughlaq	D) Nasiruddin Mahmud Shah

Answer & Explanation Answer: D) Nasiruddin Mahmud Shah

Explanation:

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4 15422

Q:

Who is the planet moving in the opposite direction than other planets in Solar System?

A) Neptune	B) Pluto
C) Uranus	D) Saturn

Answer & Explanation Answer: C) Uranus

Explanation:

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0 15412

Q:

The distance in pitch between any two tones is called

A) Octave	B) Dynamics
C) Interval	D) Unison

Answer & Explanation Answer: C) Interval

Explanation:

The distance in pitch between any two tones is called an interval.

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0 15389

Q:

Which of the following statements are CORRECT?

I. Esters are sweet smelling substance.
II Esters are used in making perfumes.
III. Functional group of ester is R-O-RꞋ.

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: A) Only I and II

Explanation:

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Q:

When water freezes its density

A) decreases	B) remains constant
C) increases	D) become zero

Answer & Explanation Answer: A) decreases

Explanation:

When water freezes its density decreases.

Water at ordinary temperatures contracts and increases in density as it is cooled, like most substances. But at about 4°C it reaches a maximum density and then decreases in density as it approaches the freezing point.

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50 15379

Q:

Which of the following is the MOST SIMILAR in meaning to the given word?

Aids

A) Amplifies	B) Assists
C) Expands	D) Borrows

Answer & Explanation Answer: B) Assists

Explanation:

“To aid” means to give financial or material help. So, option 2 is the best-fit answer. Amplify- increase

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Filed Under: English

0 15367

Q:

Which of the following statement is true?

A) Cohesion is the OO principle most closely associated with hiding implementation details	B) Cohesion is the OO principle most closely associated with making sure that classes know about other classes only through their APIs
C) Cohesion is the OO principle most closely associated with making sure that a class is designed with a single, well-focused purpose	D) None

Answer & Explanation Answer: C) Cohesion is the OO principle most closely associated with making sure that a class is designed with a single, well-focused purpose

Explanation:

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