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What is the colour of NaOH in Phenolphth...

What is the colour of NaOH in Phenolphthalein?

A

Red

B

Blue

C

Green

D

Pink

Text Solution

Verified by Experts

The correct Answer is:
B
Atomic size increases down the group, so, Sodium is larger in size than lithium. Ionisation energy decreases down the group, so, Calcium has lower value of ionisation potential than magnesium. Alkali metals have a metallic lustre.
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ICSE-SAMPLE PAPER 2-MULTIPLE CHOICE QUESTION
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  2. What is the value of n if molecular mass is 348 and empirical formula ...

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  3. What is the colour of NaOH in Phenolphthalein?

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  4. Which of the following is true for alkali metals ?

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  5. Which of the following can be extracted by reducing agents like Carbon...

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  6. Salts of which elements are generally coloured :

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  7. If two compounds have the same empirical formula but different molecul...

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  9. When two compounds R and S have same percentage composition. Then the ...

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  10. Halogen are :

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  11. An element having atomic number 17 and belongs to halogens is

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  12. How many electrons are required by oxygen atom to attain nearest noble...

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  13. Which of the following is used in the manufactures of bleaching powder...

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  14. If electrons are added to an atom, it is:

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