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Organic Chemistry
The product formed on heating nicotinic acid with calcium oxide is
1. pyrrole
2. furan
3. pyridine
4. thiophene
1. pyrrole
2. furan
3. pyridine
4. thiophene
Organic Chemistry
Indicate whether each of the following statements are true or false
1. Arsenic is a metalloid.
2. The hydroxide of aluminium is amphotheric
3. PbCl4 is more prevalent than PbCl2
4. Al has a diagonal relationship with C
5. For an element to convert into an anion, it’s ionization energy must be high and the electron affinity must be negative
1. Arsenic is a metalloid.
2. The hydroxide of aluminium is amphotheric
3. PbCl4 is more prevalent than PbCl2
4. Al has a diagonal relationship with C
5. For an element to convert into an anion, it’s ionization energy must be high and the electron affinity must be negative
Organic Chemistry
Give two ionic equations representing the formation of the ions obtainable from hydrogen
Organic Chemistry
Compounds which have different arrangements of atoms in space while having same atoms bonded to each other are said to have
A) Position isomerism
B) functional group isomerism
C) chain isomerism
D) stereoisomerism
A) Position isomerism
B) functional group isomerism
C) chain isomerism
D) stereoisomerism
Organic Chemistry
Which of the following is an alkane which can exhibit optical activity?
A) Neopentane
B) Isopentane
C) 3–Methylpentane
D) 3–Methylhexane
A) Neopentane
B) Isopentane
C) 3–Methylpentane
D) 3–Methylhexane
Organic Chemistry
Which of the following statements most accurately describes the stereochemistry between the various cyclohexanes?
A Cis-1,2-dichlorocyclohexane and trans-1,2-dichlorocyclohexane rotate plane-polarized light in opposite directions, and together in equal proportions form a racemic mixture.
B) The diaxial and diequatorial forms of trans-1,3-dichlorohexane can be separated by their differing physical properties.
C) Only cis-1,4-dichlorocyclohexane is achiral due to a plane of symmetry, and cis-1,4-dichlorocyclohexane is diastereomeric to trans-1,4-dichlorocyclohexane
D) The conformational isomers of trans-1,2-dichlorocyclohexane are enantiomers, which are not interconvertible, but resolvable
A Cis-1,2-dichlorocyclohexane and trans-1,2-dichlorocyclohexane rotate plane-polarized light in opposite directions, and together in equal proportions form a racemic mixture.
B) The diaxial and diequatorial forms of trans-1,3-dichlorohexane can be separated by their differing physical properties.
C) Only cis-1,4-dichlorocyclohexane is achiral due to a plane of symmetry, and cis-1,4-dichlorocyclohexane is diastereomeric to trans-1,4-dichlorocyclohexane
D) The conformational isomers of trans-1,2-dichlorocyclohexane are enantiomers, which are not interconvertible, but resolvable
Organic Chemistry
On heating 1.5 g of a mixture of kclo3 and kcl decreased to 0.12 g. If heating klolo3 creates kcl, calculate the percentage amount of kclo3 in the mixture.
Organic Chemistry
what voulme of 0.550 M Na2S are needed to react with 15.00mL of 0.217 M Agno3
Organic Chemistry
A compound X has formula C3H6O2. When X is refluxed with excess ethanol, C2H5OH in the presence of concentration H2SO4, a pleasant smelling oily substance Y is produced.
i. To what classes of compounds do X and Y belong?
ii. Give the names of X and Y.
iii. Write the structural formula of X and Y.
iv. Write the equation for the reaction between X and ethanol.
Organic Chemistry
Is N-Bromo methanamide a primary amide?
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#340153 on Dec 2023
#340153 on Dec 2023