1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
A
Noble gases have large positive values of electron gain enthalpy
B
Noble gases are sparingly soluble in water
C
Noble gases have very high melting and boiling points
D
Noble gases have weak dispersion forces
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
In which one of the following arrangements the given sequence is not strictly according to the properties indicted against it?
A
CO2 < SiO2 < SnO2 < PbO2 : Increasing oxidizing order
B
HF < HCl < HBr < HI : Increasing acidic strength
C
H2O < H2S < H2Se < H2Te : Increasing pKa values
D
NH3 < PH3 < AsH3 < SbH3 : Increasing acidic character
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Which of the following is not correct about carbon monoxide?
A
It reduces oxygen carrying ability of blood.
B
The carboxyhemoglobin (haemoglobin bound to CO) is less stable than oxyhaemoglobin.
C
It produced due to incomplete combustion.
D
It forms carboxyhaemoglobin.
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Match the following and identify the correct option.
(A) CO(g) + H2(g) (i) Mg(HCO3)2 + Ca(HCO3)2
(B) Temporary hardness of water (ii) An electron deficient hydride
(C) B2H6 (iii) Synthesis gas
(D) H2O2 (iv) Non-planar structure
A
(A) (B) (C) (D)
(iii) (ii) (i) (iv)
B
(A) (B) (C) (D)
(iii) (iv) (ii) (i)
C
(A) (B) (C) (D)
(i) (iii) (ii) (iv)
D
(A) (B) (C) (D)
(iii) (i) (ii) (iv)
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