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Total number of questions- 10 || General Chemistry Test-4
1.Which among the following is not a semi-metal??
Si
Ge
Ti
As
2.The strongest acid among the following is : ?
H2SO4
Hcl
HoCl
HoBr
3.If we increase the temperature, what will happen to the pH value of pure water??
Increase
Decrease
Remains same
Increase and then decrease
4.Which one has the highest basic strength??
Ch3‐
NH2-
HCO3-
No3-
5.Find out the strongest conjugate base??
Cl-
NH2-
SO4²-
I-
6.Which one has the highest solubility in H2O??
Na2S
Cu2S
Ag2S
CdS
7. The Unit of active mass of a substance is??
Dimensionless
Mole / L
g / L
mole -L
8.The dependence of vapour pressure and temperature is explained by ??
Arrhenius equation
Claussius Clayperon equation
Vant Hoff equation
Tautons
9.What is the correct increasing order of acid strength??
CH4 < NH3 < H2O < HF
HF < H2O < NH3 < CH4
NH3 < HF < H2O < CH4
NONE OF THESE
10.Which of the following species can act as a Lewis base? ?
H2O
AlCl3
BF3
Mg²+