Description : The 1H NMR spectrum of 2-bromo-2-methylpropane will consist of? a. three quartets and a singlet b. two doublets and a singlet c. two singlets d. one singlet
Last Answer : d. one singlet
Description : What is the density of 2-methylpropane?
Last Answer : The density of 2-methylpropane is 2,52 g/L.
Description : How many isomers are possible for hexane? (a) 4 (b) 5 (c) 6 (d) 7
Last Answer : 5
Description : How many isomers are possible for pentane? (a) 2 (b) 3 (c) 4 (d) 5
Last Answer : 2
Description : How many isomers are possible for butane? (a) 2 (b) 3 (c) 4 (d) 5
Description : A cationic complex has two isomers A & B. Each has one Co3+, five NH3 , one Br and one SO4 2 . A gives a white precipitate with BaCl2 solution while B gives a yellow precipitate with AgNO3 ... are the possible structures of the complexes A and B ? (a) Will the two complexes have same colour ?
Last Answer : (a) [CO (NH3 ) 5 Br] SO4 and [CO (NH3 ) 5 SO4 ] Br (b) NO
Description : How many isomers are possible for heptane? (a) 9 (b) 10 (c) 11 (d) 12
Last Answer : 9
Description : How many optical isomers are possible for lactic acid? (a) 2 (b) 4 (c) 6 (d) 8
Description : What is the possible number of optical isomers for a compound containing 2 dissimilar asymmetric carbon atoms? (a) 2 (b) 4 (c) 6 (d) 8
Last Answer : 4
Description : What is the possible number of optical isomers for a compound containing n dissimilar asymmetric carbon atoms? (a) n2 (b) 2n (c) n + 1 (d) n + 2
Last Answer : 2n
Description : It is possible to distinguish between optical isomers (a) by using chemical tests (b) by mass spectrometry (c) by IR spectroscopy (d) by polarimetry
Last Answer : (d) by polarimetry
Description : How many isomers are possible for the compound with molecular formula C4H8? (a) 2 (b) 4 (c) 6 (d) 8
Last Answer : 6
Description : How many geometrical isomers are possible for Hepta-2, 5-dienoic acid:
Last Answer : How many geometrical isomers are possible for Hepta-2, 5-dienoic acid:
Description : `Na_(2)S + Na_(2)[Fe(CN)_(5)NO]to " X"` (Violet colour) The total number of possible isomers for complex " X" is , provided the ambident behaviour of
Last Answer : `Na_(2)S + Na_(2)[Fe(CN)_(5)NO]to " X"` (Violet colour) The total number of possible ... the ambident behaviour of `CN^(-)` is not considered.
Description : How many alkanes (only structural isomers) are possible with the molecular formula `C_(4)H_(8)`
Last Answer : How many alkanes (only structural isomers) are possible with the molecular formula `C_(4)H_(8)` A. 4 B. 3 C. 5 D. 6
Description : How many benzenoid isomers are possible for molecular formula `C_(7)H_(8)O` :-
Last Answer : How many benzenoid isomers are possible for molecular formula `C_(7)H_(8)O` :- A. 3 B. 4 C. 5 D. 6
Description : How many amines are possible with the molecular formula `C_(4)H_(11)N` (structural isomers only) :-
Last Answer : How many amines are possible with the molecular formula `C_(4)H_(11)N` (structural isomers only) :- A. 6 B. 7 C. 8 D. 9
Description : (i) `CH_(2)=CH-CH_(2)-CH=CH_(2)` (ii) `CH_(2)=CH-CH=CH-CH_(3)` (iii) `CH_(3)-CH=CH-CH=CH-CH_(3)` The numbers of possible geometrical isomers for the a
Last Answer : (i) `CH_(2)=CH-CH_(2)-CH=CH_(2)` (ii) `CH_(2)=CH-CH=CH-CH_(3)` (iii) `CH_(3)-CH=CH-CH=CH-CH_(3)` The ... . 0, 2, 4 B. 2, 2 4 C. 0, 3, 3 D. 0,23
Description : How much geometrical isomers are possible for the given compound? `CH_(3)-CH=CH-CH=CH-CH=CH_(2)`
Last Answer : How much geometrical isomers are possible for the given compound? `CH_(3)-CH=CH-CH=CH-CH=CH_(2)` A. 2 B. 3 C. 4 D. 8
Description : How many geometrical isomers are possible for the given compound? Ph-CH=CH-CH=CH-COOH
Last Answer : How many geometrical isomers are possible for the given compound? Ph-CH=CH-CH=CH-COOH A. 2 B. 4 C. 6 D. 8
Description : Find the number of geometrical isomers possible of the following compounds.
Last Answer : Find the number of geometrical isomers possible of the following compounds.
Description : How many isomers are possible for complex `[Co(ox)_(2)Cl_(2)]^(+)` ?
Last Answer : How many isomers are possible for complex `[Co(ox)_(2)Cl_(2)]^(+)` ? A. 1 B. 3 C. 2 D. 4
Description : How many isomers are possible for a compound with formula, `[Rn(en)_(2)Cl(NO_(2))]` ?
Last Answer : How many isomers are possible for a compound with formula, `[Rn(en)_(2)Cl(NO_(2))]` ? A. 2 B. 4 C. 6 D. 8
Description : How many isomers are possible for the complex `[Co(en)_(2)Cl_(2)]`(en=ethylene diamine )
Last Answer : How many isomers are possible for the complex `[Co(en)_(2)Cl_(2)]`(en=ethylene diamine ) A. 4 B. 2 C. 6 D. 3
Description : The total number of possible isomers of sqaure-planar `[Pt(Cl)(NO_(2))(NO_(3))(SCN)]^(2-)` is :
Last Answer : The total number of possible isomers of sqaure-planar `[Pt(Cl)(NO_(2))(NO_(3))(SCN)]^(2-)` is : A. 8 B. 12 C. 16 D. 24
Description : The possible number of geometrical isomers for the complex `[CoL_(2) Cl_(2)]^(-) (L = H_(2)NCH_(2) CH_(2)O^(-))` is (are)....
Last Answer : The possible number of geometrical isomers for the complex `[CoL_(2) Cl_(2)]^(-) (L = H_(2)NCH_(2) CH_(2)O^(-))` is (are)....
Description : The number of coordination isomers possible for `[Fe(NH_(3))_(6)]^(3+)[Cr(C_(2)O_(4))_(3)]^(3-)` is __________
Last Answer : The number of coordination isomers possible for `[Fe(NH_(3))_(6)]^(3+)[Cr(C_(2)O_(4))_(3)]^(3-)` is __________
Description : How many geomatrical isomers are possible for each of the following complexes ? `(a) [Pt(NH_(3))_(2)(SCN)_(2)] " " (b) [CoCl_(2)Br_(2)]^(2-)("tetrahed
Last Answer : How many geomatrical isomers are possible for each of the following complexes ? `(a) [Pt(NH_(3))_(2)(SCN)_(2)] " " ... (+) " " (f) [Rh(en)_(3)]^(3+)`
Description : The number of structural isomers of alcohols with molecular formula C4H9OH is (a) 5 (b) 4 (c) 3 (d) 6
Description : The number of structural isomers of alcohols with molecular formula C3H7OH is (a) 5 (b) 4 (c) 3 (d) 2
Description : For the complex [Fe(en)2Cl2], Cl, (en = ethylene diamine), identify (i) the oxidation number of iron, (ii) the hybrid orbitals and the shape of the complex, (iii) the magnetic behaviour of the complex, (iv) ... an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry
Last Answer : i) [Fe(en)2Cl2] Cl or x + 0 + 2 (-1) + (-1) = 0 x + (- 3) = 0 or x = + 3 ∴ Oxidation number of iron, x = + 3 (ii) The complex has two bidentate ligands and two ... )2Cl2] Cl, only cis-isomer shows optical isomerism. (vi) Name of complex: Dichloridobis (ethane-1, 2- diamine) Iron (III) chloride
Description : Compounds with identical molecular formula but different structures are called - (1) Tetravalent compounds (2) Structural isomers (3) Covalent compounds (4) None of the above
Last Answer : (2) Structural isomers Explanation: Structures with identical molecular formula but different structures are called structural isomers. Eg: Butane.
Description : Atoms of same element having different mass numbers are Called _______. (1) Isobars (2) Isotopes (3) (3)Isotones (4) (4) Isomers
Last Answer : (2) Isotopes Explanation: Atoms that have the same atomic number but different atomic masses are called isotopes. The difference in mass arises due to the atoms containing a different number of neutrons ... -14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively.
Description : Arrange the three isomers of pentane in increasing order of their boiling points?
Last Answer : Ans.2, 2-Dimethylpropane
Description : Name two isomers of butanol? Which has higher boiling point?
Last Answer : Ans. n-butanol and 2-methyl propan-2-ol.Butanol has the higher boiling point as the branching increases the surface area of the molecule decreases so the boiling point decreases.
Description : How many isomers containing a benzene ring correspond to the formula C6H4(COOH)2? (a) 1 (b) 2 (c) 3 (d) 4
Last Answer : 3
Description : What is the term used for isomers that are in rapid equilibrium? (a) keto-enol tautomers (b) constitutional isomers (c) conformational isomers (d) cis-trans isomers
Last Answer : keto-enol tautomers
Description : α-D-Glucose is different from β-D-glucose (a) in the configuration at C-1 (b) because they are mirror images of each other (c) because they are enantiomers (d) because they are geometrical isomers
Last Answer : in the configuration at C-1
Description : Diethyl ether and methyl propyl ether are (a) Conformational isomers (b) Metamers (c) Geometrical isomers (d) Enantiomers
Last Answer : Metamers
Description : There are 8 isomers that have the molecular formula C5H11Br. How many of these are tertiary alkyl bromides? (a) 1 (b) 2 (c) 3 (d) 8
Last Answer : 1
Description : Why do trans isomers of alkenes have lower boiling points than cis isomers? (a) trans isomers have better symmetry (b) cis isomers have better symmetry (c) trans isomers are less polar (d) cis isomers are less polar
Last Answer : trans isomers are less polar
Description : How do the melting points of trans isomers compare to the cis isomers for alkenes? (a) cis isomers have higher melting points (b) trans isomers have higher melting points (c) both have similar melting points (d) no consistent trend is observed
Last Answer : trans isomers have higher melting points
Description : How many monochlorinated isomers would result from the reaction of chlorine with n-butane in the presence of UV light? (a) 2 (b) 4 (c) 6 (d) 8
Description : Which of the statements is correct about diastereomers? (a) They are stereoisomers that are not enantiomers. (b) They are a pair of identical isomers. (c) They are a pair of isomers that are mirror images. (d) All their asymmetric centers are the same.
Last Answer : They are stereoisomers that are not enantiomers
Description : . A and B are stereoisomers. They are nonsuperimposable and are mirror images of one another. Which of the following best describes the relationship between A and B? (a) structural isomers (b) enantiomers (c) cis-trans isomers (d) diastereomers
Last Answer : enantiomers
Description : Optical isomers that are not mirror images are called (a) Diastereomers (b) Enantiomers (c) Metamers (d) Meso compounds
Last Answer : Diastereomers
Description : Optical isomers that are mirror images are called : (a) Tautomers (b) Diastereomers (c) Enantiomers (d) Metamers
Last Answer : Enantiomers
Description : Which of the statements is false regarding chiral compounds? (a) rotate the plane of polarized light (b) have cis and trans isomers (c) exist as enantiomers (d) can be detected with a polarimeter
Last Answer : have cis and trans isomers
Description : Which of the following compounds may exist as cis-trans isomers? (a) 1-Butene (b) 2-Butene (c) Cyclopropane (d) Acetone
Last Answer : 2-Butene