Archives

camphor chiral centers

Enantiomers are compounds that are mirror reflections of each other and are non-superimposable. The light is rotated in opposing directions by... View Article

calculate the oxidation number of sulphur in h2s4o6. count for the fallacy if any

Any component that is free has an oxidation number of zero. When compared to the particle, the oxidation number for monatomic particles is... View Article

Assertion (A): Noble gases have very low boiling points. Reason (R): All noble gases have general electronic configuration of ns^(2)np^(6) (except He).

Noble gases have very low boiling points due to weak dispersion forces. Their general electronic configuration is ns2np6 (except He). In... View Article

A proton, an electron, and a helium nucleus, have the same energy. They are in circular orbits in a plane due to magnetic field perpendicular to the plane, let rp, re, rHe be their respective radii, then a) re>rp>rHe b) rerp=rHe d) re

r = mv/qBr ∝ √m/q [ K.E is ome for all particles]MHe2+ = 4mp,qH4e + 2qpmp>me rp = k(√mp/qp)k = √(2(K.E.)/B)re =... View Article

The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of slag. A. 2C(s)+O2→2CO2(g) B. CaCO3(s)→CaO(s)+CO2(g) C. CaO(s)+SiO2(s)→CaSiO3(s)

Around 1270 K (middle portion), decomposition of limestone gives lime (CaO) and CO2. Lime is a flux and combines with silicate impurity to form... View Article

The mixed anhydride of nitrogen is: (A) N2O2(NO) (B) N2O4(2NO2) (C) N2O5 (D) N2O2

When ammonium nitrate is heated, nitrous oxide is produced.NH4NO3 → ΔN2O+2H2O When sodium nitrate reacts with ferrous sulphate in an... View Article

For the spinel structure MgAl2O4, the correct statement is / are This question has multiple correct options A) 50% of the octahedral voids are occupied by ions B) Al3+ ions are equally distributed in tetrahedral voids and octahedral voids. C) Oxide ions occupy ccp lattice D) 12.5% of the tetrahedral voids are occupied by ions.

For spinel structure, O2− ions from FCC arrangement.Therefore, Number of O2− ions = 4.Number of TV = 8, Number of OV = 4Number of... View Article

M	T	W	T	F	S	S
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

Archives

camphor chiral centers

calculate the oxidation number of sulphur in h2s4o6. count for the fallacy if any

Assertion (A): Noble gases have very low boiling points. Reason (R): All noble gases have general electronic configuration of ns^(2)np^(6) (except He).

A proton, an electron, and a helium nucleus, have the same energy. They are in circular orbits in a plane due to magnetic field perpendicular to the plane, let rp, re, rHe be their respective radii, then a) re>rp>rHe b) rerp=rHe d) re

The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation of slag. A. 2C(s)+O2→2CO2(g) B. CaCO3(s)→CaO(s)+CO2(g) C. CaO(s)+SiO2(s)→CaSiO3(s)

The mixed anhydride of nitrogen is: (A) N2O2(NO) (B) N2O4(2NO2) (C) N2O5 (D) N2O2

heating of ammounium dichromate produces:

Major component of lpg is : class 8

The IUPAC name of CH3-CH2-NH-CH3

16 Jan 2022: The Hindu Analysis

Sansad TV Perspective: Indian Army: Marching with times

16 Jan 2022: UPSC Exam Comprehensive News Analysis

15 Jan 2022: PIB Summary for UPSC

AIR Spotlight – Measures to Tackle COVID-19 Pandemic

Sansad TV Perspective: New Rules for IPOs

UPSC 2022: Weekly GK and Current Affairs Quiz Jan 15 – Jan 21

15 Jan 2022: The Hindu Analysis

15 Jan 2022: UPSC Exam Comprehensive News Analysis

14 Jan 2022: PIB Summary for UPSC

FREE TEXTBOOK SOLUTIONS