SuperCoaching AE/JE by Testbook
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Which element has the electron configuration 1s²2s²2p⁶3s¹?
Anonymous Quiz
39%
Na
44%
Mg
15%
K
3%
Ar
1
A ball drops from height h. Air resistance is proportional to v. What's its terminal velocity?
Anonymous Quiz
29%
√(gh)
49%
mg/k (k=proportionality constant)
17%
0
6%
infinite
What is the value of 5! ?
Anonymous Quiz
5%
24
82%
120
11%
720
2%
60
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1
A 2kg mass stretches a spring 0.4m. If the mass is pulled down an additional 0.1m and released, what is the period of oscillation?
Anonymous Quiz
15%
0.63s
46%
1.26s
35%
2.52s
4%
3.14s
1👏1
Which indicator is best for titrating weak acid with strong base?
Anonymous Quiz
23%
Methyl orange
43%
Bromothymol blue
27%
Phenolphthalein
7%
Litmus