Questions

Q:

Cinnabar is an ore/mineral of

A) Lead B) Manganese
C) Molybdenum D) Mercury
 
Answer & Explanation Answer: D) Mercury

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Q:

Match the following items.

A) I – 2, II – 3, III – 4, IV – 1 B) I – 2, II – 3, III – 1, IV – 4
C) I – 3, II – 2, III – 1, IV – 4 D) I – 2, II – 1, III – 3, IV – 4
 
Answer & Explanation Answer: A) I – 2, II – 3, III – 4, IV – 1

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Q:

If the average total cost are Rs 54, average variable cost is Rs 36 and quantity produced is 2500 units, find the total fixed costs (in Rs) of the firm?

A) 30000 B) 15000
C) 45000 D) 60000
 
Answer & Explanation Answer: C) 45000

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Q:

Spiders belong to which class of animals?

A) Arachnids B) Aves
C) Gastropods D) Anthozoa
 
Answer & Explanation Answer: A) Arachnids

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Q:

The process of copying genetic information from one strand of DNA into RNA is termed as

A) translation B) transcription
C) replication D) mutation
 
Answer & Explanation Answer: B) transcription

Explanation:

The process of copying genetic information from one strand of the DNA into RNA is termed as transcription. In transcription, only a segment of DNA and only one of the strands is copied into RNA. This necessitates defining the boundaries that would demarcate the region and the strand of DNA that would be transcribed.

 

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Q:

In water treatment plant, use of chloramines ensures __________

A) taste and odour control B) weed control in reservoirs
C) disinfection D) removal of permanent hardness
 
Answer & Explanation Answer: C) disinfection

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Q:

Atomic number of which of the following elements is greater than that of Calcium?

A) Chlorine B) Argon
C) Sulphur D) Scandium
 
Answer & Explanation Answer: D) Scandium

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Q:

Which of the following animals do NOT belong to the class of reptiles?

A) Crocodile B) Snake
C) Toad D) Turtle
 
Answer & Explanation Answer: C) Toad

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