1
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Match List - I with List - II :
Choose the correct answer from the options given below :
List - I | List - II | ||
---|---|---|---|
(a) | Li | (i) | photoelectric cell |
(b) | Na | (ii) | absorbent of $$C{O_2}$$ |
(c) | K | (iii) | coolant in fast breeder nuclear reactor |
(d) | Cs | (iv) | treatment of cancer |
(v) | bearings for motor engines |
Choose the correct answer from the options given below :
2
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements : One is labelled as Assertion A and the other labelled as Reason R.
Assertion A : Lithium halides are some what covalent in nature.
Reason R : Lithium posses high polarisation capability.
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion A : Lithium halides are some what covalent in nature.
Reason R : Lithium posses high polarisation capability.
In the light of the above statements, choose the most appropriate answer from the options given below :
3
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Match List I with List II :
Choose the correct answer from the options given below :
List-I Elements |
List-II Properties |
||
---|---|---|---|
(a) | Li | (i) | Poor water solubility of $${I^ - }$$ salt |
(b) | Na | (ii) | Most abundant element in cell fluid |
(c) | K | (iii) | Bicarbonate salt used in fire extinguisher |
(d) | Cs | (iv) | Carbonate salt decomposes easily on heating |
Choose the correct answer from the options given below :
4
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :
Statement I : None of the alkaline earth metal hydroxides dissolve in alkali.
Statement II : Solubility of alkaline earth metal hydroxides in water increases down the group.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement I : None of the alkaline earth metal hydroxides dissolve in alkali.
Statement II : Solubility of alkaline earth metal hydroxides in water increases down the group.
In the light of the above statements, choose the most appropriate answer from the options given below :
Questions Asked from s-Block Elements (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates
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