2.76 g of silver carbonate on being strongly heated yield a residue weighing
2.76 g of silver carbonate on being strongly heated yield a residue weighing Options (a) 2.16 g (b) 2.48 g…
7 years ago
Chemistry
Which has maximum number of molecules
Which has maximum number of molecules Options (a) 7 gm N₂ (b) 2 gm H₂ (c) 16 gm NO₂ (d)…
7 years ago
Which of the following electronic configuration an atom has the lowest ionisation
Which of the following electronic configuration an atom has the lowest ionisation enthalpy? Options (a) 1s²2s²sp³ (b) 1s²2s²2p⁵3s¹ (c) 1s²2s²2p⁶…
7 years ago
A 5 molar solution of H₂SO₄ is diluted from 1 liter to a volume of 10 litres
A 5 molar solution of H₂SO₄ is diluted from 1 liter to a volume of 10 litres, the normality of…
7 years ago
The ratio of area covered by second orbital to the first orbital is
The ratio of area covered by second orbital to the first orbital is Options (a) 1 : 2 (b) 1…
7 years ago
The maximum number of molecules is present in
The maximum number of molecules is present in Options (a) 15 L of H₂ gas at STP (b) 5L of…
7 years ago
Amount of calcium oxide required, when it reacts with 852 g of P₄O₁₀ is
Amount of calcium oxide required, when it reacts with 852 g of P₄O₁₀ is Options (a) 100g (b) 1008g (c)…
7 years ago
A sp³ – hybrid orbital contains
A sp³ - hybrid orbital contains Options (a) 1/4 s-character (b) 1/2 s-character (c) 3/4 s-character (d) Any of these…
7 years ago
If uncertainty in position and momentum are equal, then uncertainty in velocity
If uncertainty in position and momentum are equal, then uncertainty in velocity is : Options (a) 1/2m x √(h/π) (b)…
7 years ago
The number of atoms in 0.1 mol of a triatomic gas is (Na = 6.02 x 10²³ mol⁻¹)
The number of atoms in 0.1 mol of a triatomic gas is (Na = 6.02 x 10²³ mol⁻¹) Options (a)…
7 years ago