Quiz 17 Flashcards
- Which ideal gas relationship is not true?
Pressure is directly proportional to moles
Volume is directly proportional to moles
Pressure is directly proportional to volume
Pressure is directly proportional to temperature
Pressure is directly proportional to volume
- Which of the following solutes will produce the highest boiling point of solution when dissolved in water?
2 moles of NaCl
1 mole ethanol
1 mole of MgCl2
2 mole of methanol
2 moles of NaCl
- If the overall cell potential of a galvanic cell is positive, the reaction is
nonspontaneous
spontaneous
irreversible
reversible
spontaneous
- Benzene owes its unusual stability to
pi electron delocalization over and above the six carbon ring
alternating single and double bonds
stereochemistry
carbon being sp2 hybridized
pi electron delocalization over and above the six carbon ring
- Benzene and its derivatives undergo substitution reactions instead of addition reactions because
the integrity of the benzene ring and the stable pi-bonding pattern remains intact
the hydrogens of benzene are relatively loosely bound
the benzene ring is sterically crowded hence only substitution can occur
the benzene ring is electron rich
the integrity of the benzene ring and the stable pi-bonding pattern remains intact
- Electrophiles are
electron deficient species
electron rich species
electrically neutral species
positively charged ions
electron deficient species
- The position adjacent to the substituent in a mono-substituted benzene derivative is
the ortho position
the meta position
the para position
all of the above
the ortho position
- CH3CH2CHClCH3 is a
primary alkyl halide
secondary alkyl halide
tertiary alkyl halide
methyl halide
secondary alkyl halide
- SN2 means
two step nucleophilic substitution mechanism involving both alkyl halide and nucleophile
one step nucleophilic substitution mechanism involving both alkyl halide and nucleophile
two step nucleophilic substitution mechanism involving only the alkyl halide
one step nucleophilic substitution mechanism involving only the nucleophile
one step nucleophilic substitution mechanism involving both alkyl halide and nucleophile
- Which of the following is both the correct bond angle and molecular geometry around a carbon atom with four single bonds?
120 degrees, tetrahedral
120 degrees, planar
109.5 degrees, tetrahedral
109.5 degrees, planar
109.5 degrees, tetrahedral
- What is the total number of carbon atoms in molecule of glycerol?
1
3
2
4
3
- To be classified as a tertiary alcohol, the functional –OH group is bonded to a carbon atom tat must be bonded to a total of how many additional carbon atoms?
1
3
2
4
3
- Which conditions will increase the rate of a chemical reaction?
decreased temperature and decreased concentration of reactants
decreased temperature and increased concentration of reactant
increased temperature and decreased concentration of reactants
increased temperature and increased concentration of reactants
increased temperature and increased concentration of reactants
- Bleaches act on stains by
removing electrons during the oxidation process.
reducing the colored compound by adding electrons.
exciting electrons to move between energy levels.
adding hydrogen ions to the stain.
removing electrons during the oxidation process.
- One sample of a solution with a pH of 10 is tested with phenolphthalein and another sample of this solution is tested with litmus. In this solution the color of the litmus is
blue and the phenolphthalein is pink
blue and the phenolphthalein is colorless
red and the phenolphthalein is pink
red and the phenolphthalein is colorless
blue and the phenolphthalein is pink
- Methanal is the IUPAC name for an
aldehyde
alcohol
acid
ether
aldehyde
- On heating glucose with Fehling’s solution we get a precipitate whose color is
yellow
red
black
white
red
- If formaldehyde and KOH are heated we get
acetylene
methane
methanol
ethyl acetate
methanol
- Which of the following is formed when urea is heated?
ammonium cyanate
ammonia
carbon dioxide
formic acid
ammonia
- Also known as “The Clean Air Act of 1999”.
RA 8749
PD 984
RA 6969
PD 600
RA 8749
- H+ is a/an
proton
acid
element
negatively charged electron
proton
- Materials added to detergent formulation to enhance cleaning performance by exhibiting synergistic cleaning effect with surfactant.
fillers
brighteners
builders
perfume
builders
- Esters are formed from condensation reactions between
alcohols and aldehydes
aldehydes and acids
ethers and acids
alcohols and acids
alcohols and acids
- Which of the following is the most reactive?
propene
propyne
propane
cyclopropane
propyne
- What is the name of the following alkane? CH3—CH(CH3)—CH(CH3)—CH3
2,3-dimethyl butane
1-isopropyl-1-methyl ethane
1,1,2-trmethyl propane
1,3-dimethyl butane
2,3-dimethyl butane
