Oxidation state +1 for phosphorous is found in___________?
Oxidation state +1 for phosphorous is found in___________?
A. H3PO3
B. H3PO4
C. H3PO2
D. H2P2O7
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Formula of Galena is________?
Formula of Galena is________?A. PbS
B. HgS
C. AS2S3
D. FeS2In the purification of portable water the coagulant used is_________________?
In the purification of portable water the coagulant used is_________________?A. alum
B. nickel sulphate
C. copper sulphate
D. barium sulphateTrue increasing order of acidity of the oxides of Mn is_________________?
True increasing order of acidity of the oxides of Mn is_________________?A. MnO < MnO2 < Mn2O7
B. Mn2O7 > MnO2 > MnO
C. MnO2 > MnO > Mn2O7
D. MnO2 > Mn2O7 > MnOWhich one is the right value for R ?
Which one is the right value for R ?A. 0.0821 atm dm3k-1mol-
B. 0.0821 atm m3k-1mol-1
C. 2 cal k-1 mol-1
D. 8.314 Nm2k-1mol-1Which of the following can form a chealate______________________?
Which of the following can form a chealate______________________?A. ammine
B. oxalato
C. carbonyl
D. cyanoMass spectrometer is used to determine Mass number of isotopes and___________________?
Mass spectrometer is used to determine Mass number of isotopes and___________________?A. Atomic number
B. Relative abundance
C. Electronic configuration
D. All of the above