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Calculated magnetic moments

The calculated magnetic moments (spin only value) for species [FeCl4]2-, [Co(C2O4)3]3- and MnO2-4 respectively are: a. 5.92, 4.90 and 0... View Article

The Correct set from the following in which both pairs are in correct order of melting point is

The Correct set from the following in which both pairs are in correct order of melting point is a. LiF... View Article

Match List-I with List-II

Match List-I with List-II List- I List-II (a) Valium (iv) Tranquilizer (b) Morphine (iii) Analgesic (c) Norethindrone (i) Antifertility... View Article

The incorrect statement among the following is:

The incorrect statement among the following is: a. VOSO4 is a reducing agent b. Red color of ruby is due... View Article

Which one of the following compounds is non-aromatic?

Which one of the following compounds is non-aromatic? Answer: (b) (Not planar) Hence, it is non-aromatic.

Given below are two statements:

Given below are two statements: Statement I: The value of the parameter ”Biochemical Oxygen Demand (BOD)” is important for survival... View Article

Given below are two statements:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. ... View Article

Match List-I with List-II

Match List-I with List-II List- I List-II (Salt) (Flame colour wavelength) (a) LiCl (i) 455.5 nm (b) NaCl (ii) 970.8... View Article

Match List-I with List-II

Match List-I with List-II List- I List-II (Metal) (Ores) (a) Aluminum (i) Siderite (b) Iron (ii) Calamine (c) Copper (iii)... View Article

The correct order of the following compounds

The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is: a. (iv) < (i) <... View Article

Let a, b∈R. If the mirror image of the point P(a, 6, 9) with respect to the line (x – 3)/7 = (y – 2)/5 = (z – 1)/(-9) is (20, b, -a, -9), then |a + b| is equal to:

a. 86 b. 88 c. 84 d. 90 Answer: (b) P(a, 6, 9), Q (20, b, -a-9) Mid point of... View Article

The heat of combustion of ethanol into carbon dioxide and water is –327 kcal at constant pressure. The heat evolved (in cal) at constant volume and 27ºC (if all gases behave ideally) is (R = 2 cal mol^–1K^–1)

ΔHco [C2H5OH] = –327 kcalC2H5OH(l) + 3O2 (g) → 2CO2 (g) + 3(H2O)(l)ΔEco = ΔHco – ΔngRT= – 327 ×... View Article

The oxidation states of transition metal atoms in K₂Cr₂O₇, KMnO₄ and K₂FeO₄, respectively, are x, y and z. The sum of x, y and z is

The oxidation states of transition metal atoms in K2Cr2O7, KMnO4 and K2FeO4, respectively, are x, y and z. Solution: 19

The work function of sodium metal is….

The work function of sodium metal is 4.41 × 10–19J. If photons of wavelength 300 nm are incident on the... View Article

For the disproportionation reaction…..

For the disproportionation reaction 2Cu+(aq) ⇌ Cu(s) + Cu2+(aq) at K, ln K (where K is the equilibrium constant) is... View Article

The ratio of the mass percentages of ‘C & H’ and ‘C & O’ of a saturated acyclic organic compound ‘X’ are 4:1 and 3:4 respectively. Then, the moles of oxygen gas required for complete combustion of two moles of organic compound ‘X’ is ___________.

Solution: The mass ratio of C:H is 4:1 ⇒ 12:3& C:O is 3:4 ⇒ 12:16So, mass mole mole ratioC 12... View Article

Three elements X, Y and Z are in the 3^rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic, The correct order of the atomic numbers of X, Y and Z is:

1) X < Y < Z 2) Y < X < Z 3) Z < Y < X 4) X... View Article

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1
…
2,744
2,745
2,746
2,747
2,748
…
5,472
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Latest Posts

Calculated magnetic moments

The Correct set from the following in which both pairs are in correct order of melting point is

Match List-I with List-II

The incorrect statement among the following is:

Which one of the following compounds is non-aromatic?

Given below are two statements:

Given below are two statements:

Match List-I with List-II

Match List-I with List-II

The correct order of the following compounds

Let a, b∈R. If the mirror image of the point P(a, 6, 9) with respect to the line (x – 3)/7 = (y – 2)/5 = (z – 1)/(-9) is (20, b, -a, -9), then |a + b| is equal to:

The heat of combustion of ethanol into carbon dioxide and water is –327 kcal at constant pressure. The heat evolved (in cal) at constant volume and 27ºC (if all gases behave ideally) is (R = 2 cal mol^–1K^–1)

The oxidation states of transition metal atoms in K₂Cr₂O₇, KMnO₄ and K₂FeO₄, respectively, are x, y and z. The sum of x, y and z is

The work function of sodium metal is….

For the disproportionation reaction…..

The ratio of the mass percentages of ‘C & H’ and ‘C & O’ of a saturated acyclic organic compound ‘X’ are 4:1 and 3:4 respectively. Then, the moles of oxygen gas required for complete combustion of two moles of organic compound ‘X’ is ___________.

The molecular geometry of SF₆ is octahedral. What is the geometry of SF₄ (including lone pair(s) of electrons, if any)?

Amongst the following statements regarding adsorption, those that are valid are:

The one that is not expected to show isomerism is:

Three elements X, Y and Z are in the 3^rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic, The correct order of the atomic numbers of X, Y and Z is: