MEDIUM
JEE Main
IMPORTANT
Earn 100

Match List - I with List - II.
List-I (Salt)
List-II (Flame colour wavelength)
(a)
(i)
(b)
(ii)
(c)
(iii)
(d)
(iv)
Choose the correct answer from the options given below:
(a)(a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
(b)(a)-(i), (b)-(iv), (c)-(ii), (d)-(iii)
(c)(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
(d)(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

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Important Questions on The s-Block Elements
MEDIUM
JEE Main
IMPORTANT
Number of amphoteric compounds among the following is
(A)
(B)
(C)
(D)

MEDIUM
JEE Main
IMPORTANT
Match List-I with List-II
List - I (Elements) |
|
List - II (Properties) |
|
(a) | Organic solvent soluble compounds | ||
(b) | Outer electronic configuration | ||
(c) | Oxalate insoluble in water | ||
(d) | Formation of very strong monoacidic base |
Choose the correct answer from the options given below:

MEDIUM
JEE Main
IMPORTANT
A s-block element (M) reacts with oxygen to form an oxide of the formula . The oxide is pale yellow in colour and paramagnetic. The element is:

EASY
JEE Main
IMPORTANT
Two elements and have similar chemical properties. They don't form solid hydrogencarbonates, but react with nitrogen to form nitrides. and , respectively, are :

EASY
JEE Main
IMPORTANT
The metal mainly used in devising photoelectric cells is :

MEDIUM
JEE Main
IMPORTANT
The correct statement(s) among to with respect to potassium ions that are abundant within the cell fluids, is/are
They activate many enzymes.
They participate in the oxidation of glucose to produce .
Along with sodium ions, they are responsible for the transmission of nerve signals.

MEDIUM
JEE Main
IMPORTANT
A metal on combustion in excess air forms . upon hydrolysis with water yields and along with another product. The metal is:

EASY
JEE Main
IMPORTANT
The incorrect statement is:
