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BeO is almost insoluble but `BeSO_(4)` is soluble in WATER
BaO is soluble but `BaSO_(4)` is insoluble in water
LiI is more soluble thatn Kl in ETHANOL
Both LI and Mg form solid hydrogen carbonates

Friedel - Crafts reaction between benzene and acetic anhydride in the presence of anhydrous `AlCl_(3)` yields acetophenone and not POLY SUBSTITUTED products.
Acetophenone FORMED poisons the catalyst PREVENTING further the Friedel - Crafts reaction.
During fridel crafts alkylation reaction REARRANGEMENT of carbocation takes place.
Carbocation is poor electrophile than acylium ion.

BENZENE is planer molecule
All the carbon ATOMS in benzene are sp^2hybridised
Absence of pure double bond in benzene accounts for the reluctance of benzene to show addition reactions under NORMAL conditions
Presence of delocalised π electrons in benzene makes it less STABLE than hypothetical cyclohexatriene

Cis-1,4-Poly-isoprene is natural polymer
In PREPARATION of Buna-N, PEROXIDE is USED as catalyst
Neoprene is copolymer
Buna-S is addition polymer

PRIMARY amine show INTERMOLECULAR bond
Isopropyl amine is a SECONDARY amine
Amines are basic in nature
Tertiary amines do not show intermolecular HYDROGEN bonds

In the corosion of iron, reduction of oxygen while oxidation of metal take place.
Rusting is REDUCED in highly ALKALINE medium.
`Mg` can ACT as sacrifical electrode.
`CO_(2)` gas can prevent the metal SURFACE from corrosion.

The p - CHARACTER in the hybrid ORBITAL of nitrogen in borazole (ALSO called barazine) is more than that in the hybrid orbital of N in `NH_3`
Borazole exhibit resonance
The Lewis acid character of boron in barazole is less than that in `Bl_3`
Borazole molecule has CONJUGATED structure resulting from intermolecular acid - base reaction

`FeSO_(4)` solution mixed with `(NH_(4))_(2)SO_(4)` solution in `1:1` molar RATIO GIVES test of `FE^(2+)` ion
`CuSO_(4)` solution mixed with aqueous ammonia in `1:1` molar ratio gives test of `Cu^(2+)` ion
`Aq.CuSO_(4)` solution (blue in colour) gives a green precipitate with aqueous potassium fluoride
`Aq.CuSO_(4)` solution (blue in colour) gives a bright green solution with aqueous potassium chloride

`2C_(2) H_(5) I + 2Naoverset((C_(2) H_(5))_(2)O)(rarr) C_(4) H_(10) + 2Nal`<BR>`2C_(2) H_(5)Br + ZN overset(ETOH)(rarr) (C_(2)H_(5))_(2) Zn + Br_(2)`
`2C_(2)H_(5)Br + Nal overset((CH_(3))_(2)C=O)(rarr) C_(2) H_(5) I + NaBr`
All are correct reactions.

`H_(3)C-CH=CH-CH_(2)-OVERSET(O)overset("||")C-OH gtH_(3)C-CH_(2)-CH=CH-overset(O)overset("||")C-OH`
(decarboxylation on heating)
`F_(3)C-COOH gtCl_(3)C-overset(O)overset("||")C-OH ("decarboxylation on heating with sosalime")`
(decarboxylation on heating with `H_(2)SO_(4))`
(decarboxylation on heating)

`O_(2)F_(2)` and `OF_(2)` both have OPEN book structure.
Inorganic BENZENE and organic benzene both have all `sp^(2)` hybridised atoms.
Pure hydrogen is PREPARED action of DILL `H_(2)SO_(4)` on pure magnesium ribbon
`Cr_(2)(SO_(4))_(3) + H_(2)O_(2) + NaOh rarr Na_(2)Cr_(2)O_(7) + Na_(2)SO_(4) + H_(2)O`

Picric acid & Benzoic acid can be distringuished by `NaHCO_(3)`
`lt` rate of `S_(N)2` reaction
`+underset((1eq.))(CH_(3)MgIoverset("ether")to`
does't SHOW tautomerism.

It does not give quantitative interpretation of magnetic data.
It distinguishes between weak and STRONG ligands.
It does not EXPLAIN the colour EXHIBITED by COORDINATION compounds.
It does not explain STABILITIES of coordination compounds.

Aerosol PARTICLES of oxides-Wet DEPOSITION
Aerosol particles of AMMONIUM salts-Wet deposition
`SO_(2)` ABSORPTION--Dry deposition
`SO_(2)` absorption-Wet deposition

`X_(2)Cl_(3)`
`X_(2)O_(3)`
`X_(2)(SO_(4))_(3)`
`XPO_(4)`

Syn addition of -H (from `BH_3` ) and -OH (from solution ) occurs.
Syn addition of -H (from `BH_3` ) and -OH (from `H_2O_2` ) occurs.
The product is OPTICALLY active
Addition FOLLOWS anti-Markownikoff's ORIENTATION.

PRIMARY amines show intermolecular hydrogen bonds.
Tert-Butylamine is a primary AMINE.
Tertiary amines do not show intermolecular hydrogen bonds.
ISOPROPYLAMINE is a SECONDARY amine.

Primary alcohol are finally oxidised to carboxylic ACIDS.
Secondary alcohols are first oxidised to KETONES .
Tetiary alcohols are EASILY oxidised in neutral MEDIUM.
Dil . `HNO_3`, is an oxidising agent .

Cm
No
Mo
Md

Oxides of carbon family `(MO_2)` are all network solids WIT octahedral coordination.
Silica is a network SOLID with tetrahedral coordination
Carbon dioxide, tin dioxide and lead dioxide are all acidic oxides.
`N(CH_(3))_(3)` has pyramidal STRUCTURE.

`CR^(2+), 4.90 BM`
`MN^(2+), 4.90 BM`
`TI^(2+), 3.87 BM`
`Co^(3+), 4.87 BM`

Rhombic SULPHUR is BLUE in colour.
Rhombic sulphur is SOLUBLE in water but insoluble in organic solvents.
Rhombic and monoclinic sulphur have S6 molecules.
In Cyclo-`S_(6)` molecule, the ring adopts chair FORM.

in DEGENERATED molecular orbitals
in molecular orbitals which have given shape
in molecular orbitals which are perpendicular to each other.
all are incorrect

NYLON 2-nylon 6 is a polyamide copolymer of alanine .
3-Hydroxy pentanoic acid is a monomer of Nylon 2-nylon 6.
PHBV can never be used in the manufacture of ORTHOPAEDIC devices.
None of these .

Water is OXIDIZED to `O_(2)`
`F_(2)` is oxidized to HF
Water is REDUCED to Hf
`F_(2)` acts as reducing agent in the reaction.

`CH_3 CHO` on reactionwith ` HCN`givesracemicmixture
`CH_3- UNDERSET(OH)underset(|) overset(C_2 H_5) overset(|)C-Hand H - underset(CH_3) underset(|) overset(C_2 H_5) overset(|) C-OH` arepositionmixture
`CH_3 -CH= NOH` showsgeometrical ISOMERISM .

are enantiomers
`CH_(3)CHO` on reaction with HCN GIVES racemic mixture.
`CH_(3)-underset(OH)underset(|)overset(C_(2)H_(5))overset(|)(C)-H and H-underset(CH_(3))underset(|)overset(C_(2)H_(5))overset(|)(C)-OH` are enantiomers
`CH_(3)-CH=NOH` SHOWS geometrical isomerism.

Buffer capacity during TITRATION first increases then decreases
Buffer capacity reaches to maximum at equivalence point.
Buffer capacity will increase if concentration of `NH_(4)OH` increases.
Buffer capacity value will REMAIN same if strong ACID `HCl` is replace by `H_(2)SO_(4)` of equal `[H_(2)O]`

`[Ag(NH_(3))_(2)]^(2+)`, is linear with sp hybridised `Ag^(+)` ion
`NiCl_(4)^(2-), VO_(4)^(3-)" and "MnO_(4)^(-)` have tetrahedral GEOMETRY
`[Cu(NH_(3))_(4)]^(2+), [Pt(NH_(3))_(4)]^(2+)" and "[Ni(CN)_(4)]^(2-)` have `dsp^(2)` hybridisation of the METAL ions.
`Fe(CO)_(5)` has trigonal bipyramidal structure with `d_(Z^(2))sp^(3)` hybridised iron.

`BeCO_(3)` is kept in the atmosphere of `CO_(2)` since, it is least thermally stable
Be DISSOLVES in alkali FORMING `[Be(OH)_(4)]^(2-)`
`BeF_(4)` forms complex ion with NaF in which Be goes with CATION
`BeF_(4)` forms complex ion with NaF in which Be goes with anion

`CH_(3)NCS` molecue is linear
`SiH_(3)NCS` molecule is linear
`GeH_(3)NCS` molecule is bent
`P(SiH_(3))_(3)` molecule is PYRAMIDAL

concentration of 20 volume `H_(2)O_(2)` SOLUTION is 60.7g.`L^(-1)`
volume strength of 2(N)`H_(2)O_(2)` solution is 15
volume strength of 2(N)`H_(2)O_(2)` solution is 11.2
concentration of 20 volume `H_(2)O_(2)` solution is 50.7g`cdot L^(-1)`

BOILING POINT INCREASES while vapour pressure DECREASES
boiling point decreases while vapour pressure increases
freezing point decreases while vapour pressure increases
freezing point increases while vapour pressure decreases

Increases linearly with increasing temperature
Increases non-linearly with increasing temperature
Decreases linearly with increasing temperature
Decreases non-linearly with increasing temperature

Vanadiumpentoxideis Oxidised
Reducedto VANADIUM (IV)OXIDE`(VO_(2))`
Vanadium (IV)Oxideis oxidised
Oxidisedto Vanadium IV Oxide

`CH_(3)CHO` on reaction with HCN gives RACEMIC mixture
`H_(3)C-underset(OH)underset(|)overset(C_(2)H_(5))overset(|)(C)-H` and `H-underset(CH_(3))underset(|)overset(C_(2)H_(5))overset(|)(C)-OH` are enantiomers
`H_(3)C-CH=NOH` shows geometrical isomerism

In `CH_(3)COOH //CH_(3)COONa ` buffer, the reserveacjdity of the SOLUTIONIS DUE to`CH_(3)COO^(-)` ions
It ISNOT necessary that anacidicsubstancemustcontainhydrogenions
`HCO_(3)^(-)`is bothBronstedbaseand Bronstedacid
Sodium carbonatedoesnot contain`OH^(-)` ionsand thusis not a base

Transition elements has low melting points
transition elements do not have CATALYTIC activity
Transition elements exhibit VARIABLE states
Transition elements exhibit INERT pair effect

The shape of an atomic ORBITAL depends upon azimuthal quantum number
The orientation of an atomic orbital depends upon the MAGNETIC quantum number
The energy of an ELECTRON in an atomic orbital of multi-electron depends upon principal quantum number only
The number of degenerate atomic orbitals of one type depends upon the value of azimuthal quantum number

All aldehydes are insoluble in benzene.
Higher aldehydes are more FRAGRANT.
N - Butane has more BOILING point than acetone.
Methanal and PROPANONE are immiscible with water in all proportions.

It is a device in which chemical energy is converted into electrical energy
Anode is shown by NEGATIVE sign
Oxidation reaction takes PLACE at the anode
ELECTRONS flow from cathode to anode

It does not CONTAIN plane of symmtry
Cl-S-Cl` BOND angle is greater than 'Cl-Se-O' bond angle
Lone PAIR has greater than 33.% s-character
Central ATOM USED one d-ordital in bonding

All AMINO acids have COMON isoelectric point
All NATURALLY OCCURRING a - amino acids are optically acitive except glycine
At `pH = 0` all amino acids are present as their anions
In strongly basic solutions, all amino acids are present as their cations 

It has the same hybridisation as `[Ti(H_(2)O)_(6)]^(3+),[V(H_(2)O)_(6)]^(3+).[TiF_(6)]^(3-)" and "[V(H_(2)O)_(6)]^(2+)`
It has different magnetic PROPERTY as compared to `[Cr(NH_(3))_(6)]^(3+)`
It has same magnetic property as compared to `[MnF_(6)]^(2-)` but different hybridisation
Both (a) and (b)

It is synthesized by microorganism in intestine.
It is synthesized in skin with the help of SUNLIGHT.
It cannot be synthesized in human BODY.
Human body synthesize it from CAROTENE.

PA, U, Np, Pu and Cm have very sharp lines in the absorption spectra.
Spectral lines are tentimes as intense as those from the lanthanides.
`Am^(2+)` exists only in the SOLID as the fluoride.
`Cf^(2+), Es^(2+), Fm^(2+), Md^(2+)` and `No^(2+)` EXIST as ions in solution.

Water is OXIDIZED to `O_(2)`
`F_(2)` is oxidized to HF
Water is reduced to HF
`F_(2)` ACTS as REDUCING AGENT in the reaction.