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Q:

Which is the first metallic element in the Modern Periodic Table?

A) Li B) Na
C) He D) H2
 
Answer & Explanation Answer: A) Li

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Q:

Which of the following is used to get relief when you have been stung by a honeybee?

A) Common salt B) Baking soda
C) Acetic acid D) Washing soda
 
Answer & Explanation Answer: B) Baking soda

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Q:

The maximum number of electrons that can be accommodated in a shell is indicated by the formula

A) 2n-2 B) 2n3
C) 2n D) 2n2
 
Answer & Explanation Answer: D) 2n2

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Q:

What are stars primarily made of?

A) Oxygen and Hydrogen B) Hydrogen and Carbon
C) Hydrogen and Helium D) Oxygen and Helium
 
Answer & Explanation Answer: C) Hydrogen and Helium

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Q:

In the process of ___, the iron is protected by a coating of zinc.

A) greasing B) alloying
C) galvanisation D) anodising
 
Answer & Explanation Answer: C) galvanisation

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Q:

Which of the following is the most common kidney stone-forming compound?

A) Calcium oxalate B) Magnesium oxide
C) Sodium bicarbonate D) Magnesium citrate
 
Answer & Explanation Answer: A) Calcium oxalate

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Q:

Which of the following is not correct with reference to Bio-sand Water Filter?

A) It deactivates or kills pathogens B) Sedimentation removes larger particles
C) Filtration removes smaller particles D) High quality water is always assured
 
Answer & Explanation Answer: D) High quality water is always assured

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Q:

Which of the following salts is acidic in nature?

A) Sodium Carbonate B) Ammonium Phosphate
C) Magnesium Sulphate D) Sadium Acetate
 
Answer & Explanation Answer: A) Sodium Carbonate

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