The element expected to form the largest ion to achieve the nearest
noble gas configuration is: 

1. Na 
2. O 
3. F 
4. N
Subtopic:  Atomic Size |
 51%
From NCERT
NEET - 2023
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Which of the following pair is correctly matched?

1. Basic oxides - \(In_2O_3 , K_2O , SnO_2\)
2. Neutral oxides - \(CO, NO_2, N_2O\)
3. Acidic oxides - \(Mn_2O_7, SO_2, TeO_3\)
4. Amphoteric oxides -\(BeO , Ga_2O_3 , GeO \)
Subtopic:  Nature of Compound |
From NCERT
NEET - 2023
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The correct sequence given below contains neutral, acidic, basic, and amphoteric oxide
each, respectively, i:s
1. NO, ZnO, CO2, CaO 2. ZnO, NO, CaO, CO2
3. NO, CO2, ZnO, CaO 4. NO, CO2, CaO, ZnO
Subtopic:  Nature of Compound |
 75%
From NCERT
NEET - 2023
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The IUPAC name of an element with atomic number 119 is:
1. ununoctium  2. ununennium 
3. unnilennium  4. unununnium
Subtopic:  Modern Periodic Table & Periodicity |
 81%
From NCERT
NEET - 2022
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Match list-I with list-II:

List-I
Elements
List-II
Atomic radii (pm)
(a) O (i) 88
(b) C (ii) 74
(c) B (iii) 66
(d) N (iv) 77
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (ii) (i) (iv) (iii)
2. (iv) (iii) (ii) (i)
3. (i) (iv) (iii) (ii)
4. (iii) (iv) (i) (ii)
Subtopic:  Atomic Size |
 70%
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NEET - 2022
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The first ionization enthalpies of elements X and Y are 419 kJ mol–1 and 590 kJ mol–1, respectively and the second ionization enthalpies of X and Y are 3069 kJ mol–1 and 1145 kJ mol–1, respectively. The correct statement is:
1. X is an alkali metal and Y is an alkaline earth metal.
2. X is an alkaline earth metal and Y is an alkali metal.
3. Both X and Y are alkali metals.
4. Both X and Y are alkaline earth metals.
Subtopic:  Ionization Energy (IE) |
 71%
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NEET - 2022
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The correct order of first ionization enthalpy for the given four element is:

1.  C < N < F < O
2.  C < N < O < F
3.  C < O < N < F
4.  C < F < N < O
Subtopic:  Ionization Energy (IE) |
 76%
From NCERT
NEET - 2022
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Identify the INCORRECT match.

Name IUPAC Official Name
a. Unnilunium (i) Mendelevium
b. Unniltrium (ii) Lawrecium
c. Unnilhexium (iii) Seaborgium
d. Unununnium (iv) Darmstadtium
 
1. (b)- (ii) 2. (c)- (iii)
3. (d) -(iv) 4. (a)-  (i)
Subtopic:  Modern Periodic Table & Periodicity |
 59%
From NCERT
NEET - 2020
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Match the element in column I with that in column II.

Column-I Column-II
(a) Copper (i) Non-metal
(b) Fluorine (ii) Transition metal
(c) Silicon (iii) Lanthanoid
(d) Cerium (iv) Metalloid
 
(a) (b) (c) (d)
1. (ii) (iv) (i) (iii)
2. (ii) (i) (iv) (iii)
3. (iv) (iii) (i) (ii)
4. (i) (ii) (iii) (iv)
Subtopic:  Electronic Configuration |
 86%
From NCERT
NEET - 2020
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For the second-period elements, the correct increasing order of first ionisation enthalpy is:

1. Li < Be < B < C < O < N < F < Ne

2. Li < Be < B < C < N < O < F < Ne

3. Li < B < Be < C < O < N < F < Ne

4. Li < B < Be < C < N < O < F < Ne

Subtopic:  Ionization Energy (IE) |
 74%
From NCERT
NEET - 2019
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