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Quiz 20
Mdcat-past-papers - UHS - Chemistry Quiz
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Board: UHS | Subject: Chemistry |
381. Which of the following best identifies the redox reaction:
transfer of proton
transfer of electron
absorption of light
exchange of ions
382. Methanol is produced by reduction of :
Formaldehyde
Acetaldehyde
Propanal
Propanoe
383. IUPAC name of (CH3)3CCH2Br is :
1-bromopentane
1-bromo-2,2,2-trimethylethane
1-bromo-2,2-dimethylpropane
2-bromopentane
384. Which one shows anisotropic behavior?
Wood
Gemstone
Coke
Graphite
385. In a unit cell of a crystal lattice the angle β is between faces:
a and b
b and c
c and a
not specified
386. Pick the crystalline solid:
Cement
Ceramics
Concrete
Copper
387. Number of unpaired electrons in Boron in ground state is/are:
1
2
3
4
388. Chlorination of benzene in the presence of iron (III) chloride involves mechanism of:
Electrophilic addition
Electrophilic Substitution
Free radical Substitution
Free radical halogenation
389. The element with smallest value of ionization energy is:
Li
Al
Ca
Ba
390. Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces:
Carbonates
Alkane
Ester
Amide
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