94420 + Interview Questions in Chemistry in Class 12 Page 556 InterviewSolution

27751.	The metallurgical process in which the metal obtained in fused state is called ..........
Answer» ROASTING Smelting FROTH floatation CALCINATION Answer :B

Discussion

27752.	The nature of bonding in diamond is :
Answer» Metallic Coordinate Covalent Ionic ANSWER :C

Discussion

27753.	The metallurgical process in which a metal is obtained in a fused state is called :
Answer» SMELTING Roasting Calcination Froth floatation Answer :A

Discussion

27754.	The metallic sulphide not precipitated if H_2S gas is passed through HCl containing aqueous solution is:
Answer» `COS` `Bi_2S_3` HGS `CUS` ANSWER :D

Discussion

27755.	The nature of anode rays depends on
Answer» Nature of RESIDUAL GAS Nature of discharging TUBE Nature of ELECTRODE All of these Answer :A

Discussion

27756.	The metalloid amongst the following is:
Answer» ARSENIC Sodium Gold Iron Answer :A

Discussion

27757.	The metallic of lithosphere is called
Answer» Siderophil Lithophil Atmophil None of these ANSWER :A

Discussion

27758.	The nature of bond of carbon of alkyl group and halogen in alkyl halide is ……….
Answer» COVALENT Co-ordinate covalent METALLIC IONIC ANSWER :A

Discussion

27759.	The metallic nature of transition elements is _____ than that of alkali metals.
Answer» Less More Same None Answer :A

Discussion

27760.	The naturally occuringchemicalsubstances inform ofwhich metals occur in the earth along withimpuritiesarecalled ………………. .
Answer» ANSWER :MINERALS

Discussion

27761.	The natural petroleum contains
Answer» SATURATED hydrocarbons Cyclic saturated hydrocarbons Compounds of sulphur All of these Answer :D

Discussion

27762.	Thenaturalrubber isthepolymerof
Answer» 1, 3 -butadiene polyamide ISOPRENE NONE OFTHESE Solution :Natural rubberisapolymer isisoprene ` nCH_2=CH- underset ( CH_3 )underset( \|) C= CH _2overset ( "Polymerisation") to` isoprene `underset ("natural rubber")( [CH _ 2-CH = underset ( CH_3 )underset ( \| ) C - CH _ 2 ]_n) `

Discussion

27763.	The metallic lustre exhibited by sodium is explained by :
Answer» DIFFUSION of SODIUM ions oscillation of loose electrons excitation of free electrons existence of BODY CENTRED cubic lattice. Answer :B

Discussion

27764.	The natural semipermiable membrane is:
Answer» Gelatinous `Cu_2Fe(CN)_6` Gelatinous `Ca_3(PO_4)_2` CELL wall Phenol layer Answer :C

Discussion

27765.	The metallic form of phosphorous is:
Answer» WHITE P Red P `BETA`-BLACK P `ALPHA`-Black P Answer :D

Discussion

27766.	The natural polymer among the following is
Answer» PECTIN teflon Polyethylene terylene Answer :A

Discussion

27767.	The native silver forms a water soluble compound (B) with dilute aqueous solution of NaCN in the presence of a gas (A). The silver metal is obtained by the addition of a metal (C) to (B) and complex (D) is formed as a byproduct. Write the structures of (C) and (D) and identify (A) and (B) in the following sequence : Ag+NaCN+[A] +H_(2)O [B]+OH^(-) +Na^(+) [C] +[B] [D]+Ag
Answer» ANSWER :`[A]=O_(2)` `[B]=NA[Ag(CN)_(2)]` [C]=Zn `[D]=Na_(2) [Zn(CN)_(4)]`.

Discussion

27768.	The metallic fluoride used in a Swartz reaction is ……….
Answer» NaF `CuF_(2)` `Hg_(2)F_(2)` `MgF_(2)` ANSWER :C

Discussion

27769.	The name urea was given by :
Answer» Wohler Berzelius Roulle Lemery Answer :C

Discussion

27770.	The metal X is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen is released on treatment with water. The metal is:
Answer» Al Ca Cu Zn Answer :B

Discussion

27771.	The name of which drug is given based on Hindustan Antibiotics Ltd. ?
Answer» Streptomycin Hemycin Angolamycin Veramycin SOLUTION :Hemycin

Discussion

27772.	The metallic character of the element of IV A group
Answer» Has no significance Increases from TOP to BOTTOM Does not change Decrease from top to bottom Answer :B

Discussion

27773.	The metallic character of the elements to group 14:
Answer» DECREASES from TOP to bottom Has no significance Does not change Increases from top to bottom Answer :D

Discussion

27774.	The name of the family associated with general formula (RO)_(2)CHR is
Answer» ACID anhydride Ketone ACETALS Hemiacetal. Solution :

Discussion

27775.	The metal 'X' on heating with nitrogen gives compound 'Y' which dissolves in water to evolve a colourless gas. The gas on passing through CuSO_4 solution gives a blue colour. The compound 'Y' is
Answer» `MG(NO_3)_2` `Mg_3N_2` `NH_3` MgO Answer :B

Discussion

27776.	The name of the organic compounds DDT is :
Answer» DICHLORO DIPHENYL TOLUENE Dichloro diphenyl trichloroethane Diphenyl dichloro trichloroethane Dichloro diphenyl thiosemicarbazide Answer :B

Discussion

27777.	The metal X is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen gas is released on treatment with water. The metal is :
Answer» AL Ca Cu Zn Answer :B

Discussion

27778.	The name of the compound having the structure ClCH_(2)CH_(2)COOH is
Answer» 3-chloropropanoic acid 2-chloropropanoic acid 2-chloroethanoic acid Chlorosuccinic acid Solution :`underset("3-chloro PROPANOIC acid")(Cl-underset(3)(C)H_(2)-underset(2)(C)H_(2)-underset(1)(C)OOH)`

Discussion

27779.	The nameof the compoundC in thefollowingseriesofreaction of Ethanamine oversert(HNO_(2))(to)Aoverset( PCI_(5))(to)B overset(alc. KCN) (to) C
Answer» methanenitrile ethanentrile propanentrile BUTANENITRILE ANSWER :C

Discussion

27780.	The name of the complex ion, [Fe(CN)_(6)]^(3-) is :
Answer» tricyanoferrate (III) ION hexacyanidoferrate (III) ion hexacyano iron (III) ion hexacyanitroferrate (III) ion SOLUTION :`[Fe(CN)_(6)]^(3-)` ion is hexacyanidoferrate (III) ion.

Discussion

27781.	The metal with minimum enthalpy of atomisation is:Hg,Mn,Fe,Cu.
Answer» Hg Mn Fe Cu Answer :A

Discussion

27782.	The name of is …………………. .
Answer» PYROGALLOL HYDROXY CRESOL Orcinol Phloroglucinol Solution :Orcinol

Discussion

27783.	The metal which reacts with water at room temperature is
Answer» Copper Iron Magnesium SODIUM Solution :`2Na+2H_(2)O to 2NAOH +H_(2)`

Discussion

27784.	The name of equation showing relation between electrode potential (E) standard electrode potential (E^(@)) and concentration of ions in solution is
Answer» KOHLRAUSCH's EQUATION NERNST's equation Ohm's equation Faraday's equation Solution :nernst's equation shows relation between E and `E^(o)`.

Discussion

27785.	The metal which cannot liberate H_2 from hydrochloric acid is :
Answer» Zn Cu Mg AI Answer :B

Discussion

27786.	The name of is ……………… .
Answer» PHLOROGLUCINOL PYROGALLOL QUINOL RESORCINOL SOLUTION :Phloroglucinol

Discussion

27787.	The name of the complex ion, [Fe(CN)_6]^(3-) is ___________.
Answer» tricyanoferrate (III) ion hexacyanoferrate (III) ion hexacyanoiron (III) ion hexacyanitoferrate (III) ion Answer :B

Discussion

27788.	The metal which is the best conductor of electricity is
Answer» Iron Copper Silver Aluminium Answer :C

Discussion

27789.	The name of drug which is used in mental depression?
Answer» EQUANIL Tetracycline Bithional Erythromycin Answer :A

Discussion

27790.	The name of [CoCl_(2)(NO_(2))_(2)(NH_(3))_(2)]OH is
Answer» Diamminechloronitritocobalt (III) hydroxide Amminechloronitro cobalt(III) hydroxide Diamminedichloridodinitrito-Ncobalt(III) hydroxide Cobalt(III) dichlorodiamminedinitro hydroxide Answer :A::B::C::D

Discussion

27791.	The metal which liberates hydrogen from hot NaOH solution is :
Answer» Zn Cu Ag Fe Answer :A

Discussion

27792.	The name of DDT is
Answer» <P>p,p - dichloro DIPHENYL TRICHLORO ethane p,p - dichloro diphenyl trichloro ethene p,p - dichloro diphenyl trichloro benzene p,p - TETRA chloro ethane ANSWER :A

Discussion

27793.	The metal which forms amide on passing NH_3 on it at 300^@ C is:
Answer» Magnesium Lead Aluminium Sodium Answer :D

Discussion

27794.	The name of complex ion [Fe(CN)_6]^(3-) is
Answer» Tricyanoferrate (III) ion Hexacyanidoferrate (III) ion Hexacyanoiron (III) ion Hexacyanitoferate (III) ion Answer :B

Discussion

27795.	The metal which does not from a polynuclear carbonyl is:
Answer» Chromium Manganese Iron Cobalt Answer :A

Discussion

27796.	The name of CH_3-CH_2 - undersetoverset(\|\|)(O)(C ) - CH_2 - CHO is .........
Answer» SOLUTION :3-Oxo pentanal

Discussion

27797.	The metal which does not form colour compound is:Chromium,Iron,Zinc,Manganese.
Answer» Chromium Iron Zine Manganese Answer :C

Discussion

27798.	The name of :
Answer» Maleic ACID Fumaric acid Malonic acid Succinic acid ANSWER :A

Discussion

27799.	The name glacial acetic acid is given to pure acetic acid ; because
Answer» Below `16.6^@`C it is WHITE liquid it FORMS ICE like solid below `16.6^@`C It is mixedwith methanol pure ACETIC acid above `16.6^@`C is solid Answer :B

Discussion

27800.	Thenamefire-damp is givento :
Answer» METHANE ethane propane butane Answer :a

Discussion

Explore topic-wise InterviewSolutions in .

The metallurgical process in which the metal obtained in fused state is called ..........

The nature of bonding in diamond is :

The metallurgical process in which a metal is obtained in a fused state is called :

The metallic sulphide not precipitated if H_2S gas is passed through HCl containing aqueous solution is:

The nature of anode rays depends on

The metalloid amongst the following is:

The metallic of lithosphere is called

The nature of bond of carbon of alkyl group and halogen in alkyl halide is ……….

The metallic nature of transition elements is _____ than that of alkali metals.

The naturally occuringchemicalsubstances inform ofwhich metals occur in the earth along withimpuritiesarecalled ………………. .

The natural petroleum contains

Thenaturalrubber isthepolymerof

The metallic lustre exhibited by sodium is explained by :

The natural semipermiable membrane is:

The metallic form of phosphorous is:

The natural polymer among the following is

The metallic fluoride used in a Swartz reaction is ……….

The name urea was given by :

The metal X is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen is released on treatment with water. The metal is:

The name of which drug is given based on Hindustan Antibiotics Ltd. ?

The metallic character of the element of IV A group

The metallic character of the elements to group 14:

The name of the family associated with general formula (RO)_(2)CHR is

The metal 'X' on heating with nitrogen gives compound 'Y' which dissolves in water to evolve a colourless gas. The gas on passing through CuSO_4 solution gives a blue colour. The compound 'Y' is

The name of the organic compounds DDT is :

The metal X is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen gas is released on treatment with water. The metal is :

The name of the compound having the structure ClCH_(2)CH_(2)COOH is

The nameof the compoundC in thefollowingseriesofreaction of Ethanamine oversert(HNO_(2))(to)Aoverset( PCI_(5))(to)B overset(alc. KCN) (to) C

The name of the complex ion, [Fe(CN)_(6)]^(3-) is :

The metal with minimum enthalpy of atomisation is:Hg,Mn,Fe,Cu.

The name of is …………………. .

The metal which reacts with water at room temperature is

The name of equation showing relation between electrode potential (E) standard electrode potential (E^(@)) and concentration of ions in solution is

The metal which cannot liberate H_2 from hydrochloric acid is :

The name of is ……………… .

The name of the complex ion, [Fe(CN)_6]^(3-) is ___________.

The metal which is the best conductor of electricity is

The name of drug which is used in mental depression?

The name of [CoCl_(2)(NO_(2))_(2)(NH_(3))_(2)]OH is

The metal which liberates hydrogen from hot NaOH solution is :

The name of DDT is

The metal which forms amide on passing NH_3 on it at 300^@ C is:

The name of complex ion [Fe(CN)_6]^(3-) is

The metal which does not from a polynuclear carbonyl is:

The name of CH_3-CH_2 - undersetoverset(||)(O)(C ) - CH_2 - CHO is .........

The metal which does not form colour compound is:Chromium,Iron,Zinc,Manganese.

The name of :

The name glacial acetic acid is given to pure acetic acid ; because

Thenamefire-damp is givento :