The basicity of CH<sub>3</sub>COOH is
4
1
2
3
Correct answer is B
No explanation has been provided for this answer.
The major and most effective way of controlling pollution is to
improve machinery so that the substances released from combustion are less harmful
pass strict laws against it by individuals and companies
educate people on the causes and effects of pollution
convert chemical wastes to harmless substances before releasing them into the environment
Correct answer is C
No explanation has been provided for this answer.
The dispersion of a liquid in a liquid medium will give
an emulsion
a fog
a gel
an aerosol
Correct answer is A
No explanation has been provided for this answer.
0.05 g
2.00 g
1.00 g
0.50g
Correct answer is D
molar mass of pb (N0 3) 2 = 331
Mole = \(\frac{16.55}{331}\)= 0.05 mole
∴0.05mole pb (No3)2 dissolved in 1000g H2O x = \(\frac{0.05\times1000}{100}\)= 0.5 mole /dm 3
efflorescence
deliquescence
hygroscopy
hydrolysis
Correct answer is A
No explanation has been provided for this answer.