SuperCoaching AE/JE by Testbook
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A body cools from 60°C to 50°C in 10 min. If room temp is 25°C, time to cool to 40°C is:
Anonymous Quiz
17%
10 min
47%
12 min
30%
15 min
6%
8 min
A body cools from 60°C to 50°C in 10 min. If room temp is 25°C, time to cool to 40°C is:
Anonymous Quiz
13%
10 min
56%
>10 min
29%
<10 min
1%
5 min
1
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🎉1
Which oxide is amphoteric?
Anonymous Quiz
12%
MgO
23%
CaO
58%
Al₂O₃
7%
Na₂O
1
Which has highest ionic character?
Anonymous Quiz
28%
NaCl
25%
KCl
36%
MgCl₂
10%
AlCl₃
1
A disc rolls without slipping. Fraction of total KE that is rotational is?
Anonymous Quiz
18%
1/4
40%
1/3
33%
1/2
8%
2/3
1
Which has highest boiling point?
Anonymous Quiz
17%
1-Butanol
43%
2-Butanol
33%
Diethyl ether
8%
Butanal
2
If f(x)+f(1/x)=x+1, then f(x)=?
Anonymous Quiz
15%
x
20%
1/x
60%
(x^2+x+1)/x
5%
(x^2+x-1)/x
Which yields only one monobrominated product?
Anonymous Quiz
16%
Neopentane
48%
n-Pentane
31%
Isopentane
5%
Cyclopentane