Explore topic-wise InterviewSolutions in Current Affairs.

Which one of the following nitrates will leave behind a metal on strong heating?

Orbital angular momemtum for d electron is

The volume of oxygen liberated from 15 ml of 20 volume H2O2 is

Which of the following orders is incorrect about electron affinity?

How would SF6 be having 12 bonds at an angle of 90 degrees 3 bonds at an angle of 180 degrees ?

53.Why Aldehyde and ketone do not give nucleophilic substitution reaction?

The correct order of the decreasing order of basic strengths of the following compounds is:

48. Oxidation state of iron in brown ring complex is??

Q1) Order of solubilty in water of LiCl,NaCl,Kcl,RbCl

An aqueous solution containing 20% by weight of liquid 'X' (mol.wt.=140 g/mol) has a vapour pressure of 160 mm Hg at 60∘C. Calculate the vapour pressure of pure liquid 'X' if the vapour pressure of water is 150 mm Hg at 60∘C.

In the Oswald process, Ammonia is catalytically oxidized to :

Find out the product 'P' :2CH4+O2Cu/523K−−−−−→100 atmP

why we cant replace all water molecules with chlorine atom in hydrate isomerism?

Which of the following gives paracetamol on acetylation?

Outermost electronic configuration of least electro negative element in the periodic table is

Chloramphenicol is a:

Two electrolytic cells,one containing acidified ferrous sulphate and other containing acidified ferric sulphate are connected in series. The ratioof iron deposited at cathodes in the two cells will be respectively (A) 2:1 (B) 2:3 (C) 1:1 (D) 3:2

"The relative lowering of the vapour pressure is equal to the mole fraction of the solute.” This law is called:

Coupling rxn in BDC and diazotisation rxn are what type of rxn??

The monomer of the following polymer is:

42. 0ml of 0.2M acid is added to 250ml of buffer solution with Ph=6.34. The final Ph becomes 6.32. Buffer capacity of original buffer solution is . a)0.1 b)0.2 c)0.3 d)0.4

Enthalpy of adsorption for physisorption is low and positive. Is this statement correct?

9. What is the root mean square speed of He molecules in m/s at 27 degree celsius ? [ R= 8 J/K/mol] a- 88.38 m/s b- 42.43 m/s c- 128 m/s d- 515 m/s

When an alkali metal dissolves in liquid ammonia the solution can acquire different colours. Explain the reasons for this type of colour change.

If the binding energy per nucleon of 3Li7 and 2He4 nuclei are 5.60 MeV and 7.06 MeV respectively, then in the reaction, the energy of proton must be,

Consider a binary mixture of two ideal volatile liquids A and B having vapour pressure of 300 mm Hg and 600 mm Hg in their pure state.What will be the mole fraction of component A in vapour phase (yA) if the total pressure (PT) of the solution is 400 mm Hg?

Consider the ground state of Cr atom (Z = 24). The number of electrons with the azimuthal quantum numbers, l = 1 and 2 are, respectively:

During mean life of a radioactive element the fraction that disintegrates is

In byju app the video on s block elements, sir in the video on physical properties of 1 group element at 1:03 min sir said Li exist in HCP shape but at 3:45 min in same video he said it is the only one who does not exist in HCP structure!!!! Why????

Electric current is passed through an aqueous solution of the following. Which one shall decompose [NCERT 1972]

19.Which of the following compounds turns black on addition of ammonium hydroxide? 1.CuCl2 2.PbCl2 3.AgCl 4.Hg2Cl2

Which shell would be the first to have 'g' subshell?

NX is produced by the following step of reactions.M+X2→MX23MX2+X2→M3X8M3X8+N2CO3→NX+CO2+M3O4How much M (metal) is consumed to produce 206 g of NX?(Take molar mass of M=56,N=23,X=80 g/mol)

How many ions are produced from the complex Co(NH3)6Cl2 in solution? (i) 6 (ii) 4 (iii) 3 (iv) 2

What are the 4 types of forces which make chemical bond?

Correct order of third ionisation energy of B , C , N , and C will be

in which of the following crystal st all the tetrahedral voids are vacant 1 caf2 2 na2o 3zns 4nacl

Bond angle is minimum for

Which of the alkyl halide cannot made good yield with Wurtz reaction? A. n butane B. n hexane C. n heptane D. dimethylbutane

why bond angle decrease if electronegativity of central metal atom decrease?

Zone refining is based on the principle that _________ .

(3) 16 564. A mixture of A (molar mass 16) and B (molar mass =32) has a vapour density 10. The mole percentage ofB in the mixture is(1) 25(2) 75(3) 50(4) 40

Which of the following allotropes of phosphorus is the most reactive?

The degree of unsaturation or index of hydrogen deficiency in the following is: i) C6H14 ii) C4H6 iii) C6H6

the suppliment of 90 degrees -x/2

What is molality of pure water??

1 g H2 at 30 degree celsius is mixed with 14 g N2 at 40 degree celsius . the temperature of final mixture is ?? explain mathematically

The vapour density of a gas is 11.2. The volume occupied by 11.2 g of the gas at S.T.P. is

The order of ionic radius given here is incorrect. Write the correct order and explain the reason.Na+ > Li+ > Mg2+ > Be2+ > Al3+

what is schotten-Baumann reaction