Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane
Last Answer : Benzene
Description : The enthalpy of combustion of `H_(2)` , cyclohexene `(C_(6)H_(10))` and cyclohexane `(C_(6)H_(12))` are `-241` , `-3800` and `-3920KJ` per mol respect
Last Answer : The enthalpy of combustion of `H_(2)` , cyclohexene `(C_(6)H_(10))` and cyclohexane `(C_(6)H_(12))` are `-241 ... "KJ mol"^(-1)` D. `242 "KJ mol^(-1)`
Description : Which conditions are fulfilled in case of combustion? (a) Oxygen is reduced (b) Burning compound undergoes oxidation (c) Oxygen is reducing agent (d) Both (a) and (b)
Last Answer : (d) Both (a) and (b)
Description : _________ is a substance which undergoes spontaneous combustion. a) wood b)coal c)sodium d)cow dung cakes
Last Answer : c)sodium
Description : The most stable form of cis cyclohexane -1,3-diol is represented as :1
Last Answer : The most stable form of cis cyclohexane -1,3-diol is represented as :1 A. B. C. D.
Description : Chair form of cyclohexane is more stable than boat form because :
Last Answer : Chair form of cyclohexane is more stable than boat form because : A. In chair form carbons are in staggered form ... ^(@)` and in boat form `111^(@)`
Description : The least stable conformation of cyclohexane is
Last Answer : The least stable conformation of cyclohexane is A. Boat B. Chair C. Twist boat D. Half chair
Description : Which of the following combination of axial & equitorial bonds show Cis or Trans orientation in Dimethyl cyclohexane. (i) 1e, 2e (ii) 1e, 3e (iii) 1e,
Last Answer : Which of the following combination of axial & equitorial bonds show Cis or Trans orientation in Dimethyl cyclohexane. ... 3a (vi) 1e, 4a (vii) 1a, 3a
Description : Is 2-butanone soluble in cyclohexane?
Last Answer : Yes, it is soluble.
Description : The starting material used for the manufacture of caprolactam is (A) Ethyl benzene (B) Cyclohexane (C) Ethylene glycol (D) DMT
Last Answer : (B) Cyclohexane
Description : Which of the following is a Naphthene? (A) Butene (B) Butadiene (C) Cyclohexane (D) Acetylene
Last Answer : (C) Cyclohexan
Description : A binary mixture of benzene and cyclohexane is separated by (A) Flash vaporisation (B) Extractive distillation (C) Solvent extraction (D) Ordinary distillation
Last Answer : (B) Extractive distillation
Description : Cyclohexane does not belong to aromatic class even though it has a ring structure. How do you justify this?
Last Answer : Cyclohexane is a saturated hydrocarbon in which the carbon atoms are joined by single covalent bonds to form a ring where as in aromatic hydrocarbons have alternate single and double bonds. Hence Cyclohexane is does not belong to aromatic class.
Description : Resorcinol on distillation with zinc dust gives (a) Benzene (b) Cyclohexane (c) Toluene (d) m-Xylene
Description : Benzene reacts with H2 at 150°C at 30 atm in the presence of Ni catalyst to give (a) Cyclohexane (b) Cyclohexene (c) n-Hexane (d) No reaction occurs
Last Answer : Cyclohexane
Description : Which of the following statements are false about benzene? (a) It is a planar molecule with bond angles 120°. (b) It is immiscible with water forming the lower layer. (c) It can be ... Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene.
Last Answer : It is immiscible with water forming the lower layer
Description : What percentage of cyclohexane molecule is estimated to be in the boat form at any given time? (a) over 99% (b) between 90% and 99% (c) approximately 50% (d) less than 1%
Last Answer : less than 1%
Description : The most stable conformation of cyclohexane is the : (a) Haworth form (b) Boat form (c) Newman form (d) Chair form
Last Answer : Chair form
Description : Which of the following statements is false about cyclohexane? (a) It is a saturated cyclic hydrocarbon (b) All C–C–C bond angles are 109°28' (c) It is very unstable, strained compound. (d) It can exist in two conformations which are designated as the boat-form and the chair-form
Last Answer : It is very unstable, strained compound
Description : The bond angle between carbon atoms in cyclohexane is (a) 60° (b) 90° (c) 109.5° (d) 120°
Last Answer : 109.5°
Description : The bond angle between carbon atoms in cyclohexane is (a) 109°28' (b) 60° (c) 90° (d) 120°
Last Answer : 109°28'
Description : Which of the following molecules will decolorize bromine in carbon tetrachloride most readily? (a) 1,2-Dimethylcyclopropane (b) Cyclopentane (c) 1,2-Dimethylcyclobutane (d) Cyclohexane
Last Answer : 1,2-Dimethylcyclopropane
Description : Which of the following compounds will react most readily with concentrated sulfuric acid? (a) Ethane (b) Cyclohexane (c) Propane (d) Cyclohexene
Last Answer : Cyclohexene
Description : Which of the following cycloalkanes is most reactive? (a) Cyclopropane (b) Cyclohexane (c) Cyclobutane (d) Cycloheptane
Last Answer : Cyclopropane
Description : Which of the following correctly ranks the cycloalkanes in order of increasing ring strain per methylene? (a) cyclopropane < cyclobutane < cyclohexane < cycloheptane (b) cyclohexane < ... < cyclobutane < cyclopentane < cyclopropane (d) cyclopentane < cyclopropane < cyclobutane < cyclohexane
Last Answer : cyclohexane < cyclopentane < cyclobutane < cyclopropane
Description : The 1936 Nobel Prize in chemistry was awarded to Peter J.W. Debye for his studies of: w) kinetic energy of colliding particles x) electron configuration y) dipole moments z) conformations of cyclohexane
Last Answer : ANSWER: Y -- DIPOLE MOMENTS
Description : Which organism undergoes amytosis cell division ?
Last Answer : Cell division occurs in the process of amitosis of amoeba organisms.
Description : A definite amount of an ideal gas `(gamma = 1.5)` undergoes change of state in which heat exchange is equal to work done `(q=w)`. Molar heat capacity
Last Answer : A definite amount of an ideal gas `(gamma = 1.5)` undergoes change of state in which heat exchange is equal to work ... : A. 2R B. 3R C. R D. `3/2R`
Description : A particle performing S.H.M undergoes displacement of `A//2` (where A = amplitude of S.H.M.) in one second. At `t = 0` be the particle was located at
Last Answer : A particle performing S.H.M undergoes displacement of `A//2` (where A = amplitude of S.H.M.) in one second. At ... cases) A. 12s B. 2.4 C. 6s D. 1.2s
Description : Total no. of vacant orbitals in valence shell of sulphur when it undergoes formation of `SF_(4)` :-
Last Answer : Total no. of vacant orbitals in valence shell of sulphur when it undergoes formation of `SF_(4)` :- A. 5 B. 4 C. 3 D. 2
Description : Statement S. After implantation, the uterine endometrium undergoes changes to become decidus Reason R. the placenta in described as deciduous type Cor
Last Answer : Statement S. After implantation, the uterine endometrium undergoes changes to become decidus Reason R. the ... and R is a correct explanation to S.
Description : Which layer of uterus undergoes cyclic changes during menstrual cycle
Last Answer : Which layer of uterus undergoes cyclic changes during menstrual cycle A. Myometrium B. Endometrium C. Perimetrium D. All the above.
Description : `Zn+H_(2)SO_(4)rarrZnSO_(4)+H_(2)` Zn undergoes -
Last Answer : `Zn+H_(2)SO_(4)rarrZnSO_(4)+H_(2)` Zn undergoes - A. Reduction B. Oxidation C. Both oxidation and reduction D. None of these
Description : Zygote of Capsella bursa-pastoris undergoes
Last Answer : Zygote of Capsella bursa-pastoris undergoes A. Longitudinal division B. Equal tranverse divison C. Unequal transverse division D. Oblique division
Description : $ Benign tumour remains confined whereas a malignant tumour undergoes metastasis. ! Tympanic fluid is filled in the tympanic cavity of the ear.
Last Answer : $ Benign tumour remains confined whereas a malignant tumour undergoes metastasis. ! Tympanic fluid is filled in ... D. If both As and R are wrong.
Description : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts alkylation with t-butylbenzene ?
Last Answer : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts ... o-isopropyl-t-butylbenzene D. none of these
Description : the compound that readily undergoes decarboxylation is
Last Answer : the compound that readily undergoes decarboxylation is A. `HOOC-(CH_(2))_(4)-COOH` B. `C_(6)H_(5)-COOH ... HOOC-CH_(2)-COOH` D. `CH_(3)CH_2CH_(2)COOH`
Description : Compound "X" undergoes the following sequences of reactions to form "Y" compound "Y"is -
Last Answer : Compound "X" undergoes the following sequences of reactions to form "Y" compound "Y"is - A. B. C. D.
Description : The compound that undergoes decarboxylation most readily under mild condition is
Last Answer : The compound that undergoes decarboxylation most readily under mild condition is A. B. C. D.
Description : Compounds P and R upon ozonolysis produce Q and S, respectively. The molecular formula of Q and S is `C_(8)H_(8)O`. Q undergoes cannizzaro reactions b
Last Answer : Compounds P and R upon ozonolysis produce Q and S, respectively. The molecular formula of Q and S is `C_(8) ... R , respectively is (are) A. B. C. D.
Description : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o
Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give ... (S) is: A. B. C. D.
Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration ... respectively, are: A. B. C. D.
Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give ... (P) is: A. B. C. D.
Description : In `CH_(3)CH_(2)OH`, the bond that undergoes heterolytic cleavage most readily is:
Last Answer : In `CH_(3)CH_(2)OH`, the bond that undergoes heterolytic cleavage most readily is: A. `C-C` B. `C-O` C. `C-H` D. `O-H`
Description : Which of the following most readily undergoes `E_(2)` elimination with a strong base?
Last Answer : Which of the following most readily undergoes `E_(2)` elimination with a strong base? A. 2- ... -Bromo-2,2-dimethylpropane D. 2-Bromo-3-methylbutane
Description : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula :
Last Answer : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula : ... 3)PO_(4)` D. `H_(3)PO_(2)`