Row_ID
int64
1
30.2M
Topic
stringclasses
3 values
Subtopic
stringclasses
4 values
Question
stringclasses
13 values
Answer_1
stringclasses
11 values
Explanation_1
stringclasses
12 values
Answer_2
stringclasses
11 values
Explanation_2
stringclasses
11 values
Answer_3
stringclasses
0 values
Explanation_3
stringclasses
0 values
Difficulty
stringclasses
2 values
6,201
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,202
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,203
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,204
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,205
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,206
Organic Chemistry
Alkenes
HBr+1-methylcyclohexene product?
1-bromo-1-methylcyclohexane
HBr adds; yields 1-bromo-1-methylcyclohexane.
1-methyl-1-bromocyclohexane
Same: 1-methyl-1-bromocyclohexane.
null
null
Hard
6,207
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,208
Organic Chemistry
Alkenes
HCl+2-methylpropene product?
2-chloro-2-methylpropane
HCl adds; yields 2-chloro-2-methylpropane.
tert-butyl chloride
Same: tert-butyl chloride.
null
null
Hard
6,209
Organic Chemistry
Alkenes
HBr+2-methylpropene product?
unknown
HBr adds; yields unknown.
unknown
Same: unknown.
null
null
Hard
6,210
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,211
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,212
Organic Chemistry
Alkenes
HCl+1-butene product?
unknown
HCl adds; yields unknown.
unknown
Same: unknown.
null
null
Hard
6,213
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,214
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,215
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,216
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,217
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,218
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,219
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,220
Organic Chemistry
Alkenes
HCl+1-methylcyclohexene product?
unknown
HCl adds; yields unknown.
unknown
Same: unknown.
null
null
Hard
6,221
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,222
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,223
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,224
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,225
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,226
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,227
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,228
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,229
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,230
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,231
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,232
Organic Chemistry
Alkenes
HCl+2-methylpropene product?
2-chloro-2-methylpropane
HCl adds; yields 2-chloro-2-methylpropane.
tert-butyl chloride
Same: tert-butyl chloride.
null
null
Hard
6,233
Organic Chemistry
Alkenes
HCl+1-methylcyclohexene product?
unknown
HCl adds; yields unknown.
unknown
Same: unknown.
null
null
Hard
6,234
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,235
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,236
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,237
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,238
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,239
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,240
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,241
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,242
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,243
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,244
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,245
Organic Chemistry
Alkenes
HCl+1-butene product?
unknown
HCl adds; yields unknown.
unknown
Same: unknown.
null
null
Hard
6,246
Organic Chemistry
Alkenes
HBr+2-methylpropene product?
unknown
HBr adds; yields unknown.
unknown
Same: unknown.
null
null
Hard
6,247
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,248
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,249
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,250
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,251
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,252
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,253
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,254
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,255
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,256
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,257
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,258
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,259
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,260
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,261
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,262
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,263
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,264
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,265
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,266
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,267
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,268
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,269
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,270
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,271
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,272
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,273
Physical Chemistry
Kinetics
t1/2,k=0.01s^-1?
69.3s
t1/2=0.693/0.01=69.3s.
~70s
t1/2β‰ˆ0.7/0.01=70s.
null
null
Hard
6,274
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,275
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,276
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,277
Physical Chemistry
Kinetics
t1/2,k=0.05s^-1?
13.9s
t1/2=0.693/0.05=13.9s.
~14s
t1/2β‰ˆ0.7/0.05=14s.
null
null
Hard
6,278
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,279
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,280
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,281
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,282
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,283
Physical Chemistry
Kinetics
t1/2,k=0.1s^-1?
6.9s
t1/2=0.693/0.1=6.9s.
~7s
t1/2β‰ˆ0.7/0.1=7s.
null
null
Hard
6,284
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,285
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,286
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,287
Organic Chemistry
Alkenes
HBr+1-butene product?
2-bromobutane
HBr adds; yields 2-bromobutane.
sec-butyl bromide
Same: sec-butyl bromide.
null
null
Hard
6,288
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
null
null
Expert
6,289
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,290
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,291
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,292
Organic Chemistry
Alkenes
HCl+1-butene product?
unknown
HCl adds; yields unknown.
unknown
Same: unknown.
null
null
Hard
6,293
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,294
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
null
null
Hard
6,295
Physical Chemistry
Kinetics
t1/2,k=0.02s^-1?
34.6s
t1/2=0.693/0.02=34.6s.
~35s
t1/2β‰ˆ0.7/0.02=35s.
null
null
Hard
6,296
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
null
null
Expert
6,297
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
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Expert
6,298
Inorganic Chemistry
Oxidation States
Fe ox.state in [Fe(CN)6]4-?
+2
[Fe(CN)6]4-: Fe=+2.
Fe(II)
+2=II.
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Expert
6,299
Inorganic Chemistry
Oxidation States
Co ox.state in [Co(NH3)6]3+?
+3
[Co(NH3)6]3+: Co=+3.
Co(III)
+3=III.
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Expert
6,300
Organic Chemistry
Nomenclature
Name CH3CH(OH)CH2CHO?
3-hydroxybutanal
CH3CH(OH)CH2CHO: 3-hydroxybutanal.
beta-hydroxybutyraldehyde
3-hydroxybutanal=beta-hydroxybutyraldehyde.
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Hard