The s-Block Elements

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Question

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Question 1 : CsOH is ___________
1. Amphoteric
2. Slightly acidic
3. Weakly basic
4. Strongly basic
Answer
8745

Question 2 :

Solvays process is used for the manufacture of ________________

1. Na₂O₂
2. K₂CO₃
3. NaOH
4. (Na₂CO₃. 10H₂O)
Answer
8746

Question 3 :

Alkali metals give a _________________when dissolved in liquid ammonia

1. Red colour
2. Colourless
3. Deep blue solution
4. All of the Above
Answer
8747

Question 4 :

What are Oxo-Acids?

1. Acid containing Hydrogen
2. Acid containing Carbon
3. Acid containing Sulphur
4. Acid containing Oxygen
Answer
8748

Question 5 :

In curing cement plasters, water is sprinkled from time to time. This helps in ___________

1. Developing interlocking needle like crystals of hydrated silicates
2. Hydrating sand and gravel mixed with cement
3. Converting sand into silicic acid
4. Keeping it cool
Answer
8749