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The oxidation number of sulphur in S8 , S2 F2 , H2S respectively , are are H2S respectively S2 F2 The oxidation number of sulphur in S8 November 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The last orbit of argon would have electrons (a) 6 (b) 2 (c) 18 (d) 8 The last orbit of argon would have electrons (a) 6 (b) 2 (c) 18 (d) 8 November 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Which of the following is not obtained by direct reaction of constituent elements (a) XeF2 (b) XeF4 (c) XeO3 (d) XeF6 Which of the following is not obtained by direct reaction of constituent elements (a) XeF2 (b) XeF4 (c) XeO3 (d) XeF6 November 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

The number of moles of KMnO4 that will be needed to react completely with one mole of ferrous oxalate in acidic soultion is The number of moles of KMnO4 that will be needed to react completely with one mole of ferrous oxalate in acidic soultion is November 25, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

Which of the following gasses exist more abundantly in nature than the others (a) Helium (b) Neon Which of the following gasses exist more abundantly in nature than the others (a) Helium (b) Neon November 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The angle of elevation of a cloud from a point h metres above the surface of a lake is θ and the angle of depression of its reflection in the lake is ϕ. Prove that the height of the cloud above the lake surface is h( tanϕ−tanθ/ tanϕ+tanθ ). tanθ increases faster than sinθ as [...]

The noble gas which forms maximum number of compounds is (a) Ar (b) He (c) Xe (d) Ne The noble gas which forms maximum number of compounds is (a) Ar (b) He (c) Xe (d) Ne November 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

From a balloon vertically above a straight road the angles of depression of two cars at an instant are found to be 45° and 60°. If the cars are 100 m apart find the height of the balloon. From a balloon vertically above a straight road the angles of depression of two cars at an [...]

A spherical balloon of radius r subtends an angle α at the eye of an observer, while the angle of elevation of its centre is β. The height of the centre of the balloon is: A spherical balloon of radius r subtends an angle α at the eye of an observer while the angle of [...]

If sin theta + cos theta =root 3 then prove that tan theta + cot theta = 1 If sin theta + cos theta =root 3 then prove that tan theta + cot theta = 1 November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,