List of top Chemistry Questions on d -and f -Block Elements asked in TS EAMCET

Given below are two statements Statement-I: Due to lanthanoid contraction 4d- and 5d-series of elements have more or less same atomic and ionic radii Statement-II: Lanthanoids exhibit more number of oxidation states than actinoids

Among the four complex ions given, identify the pair of ions with same spin only magnetic moment value:

An antibiotic which is bactericidal in nature is:

Given below are two statements: Statement-I: The oxidation state of phosphorus in the sodium salt of oxoacid formed when white phosphorus reacts with aqueous alkali solution is +1. Statement-II: Sulphur gives two gaseous products when treated with conc. \(HNO_3\).

Match the following orders with their properties.

The pair of ions with paramagnetic nature and same number of electrons is

The number of moles of oxalate ions oxidized by one mole of permanganate ions in acidic medium is

Oxoacids of phosphorus are formed in the following reactions. The acid formed in which of the following reactions does contain P - P bond?

Which of the following sets are correctly matched?
i. P$_2$O$_3$, N$_2$O$_4$ - acidic
ii. N$_2$O, NO - neutral
iii. SeO$_3$, TeO$_3$ - basic
iv. As$_2$O$_3$, Sb$_2$O$_3$ - amphoteric
The correct option is

Assertion (A): The order of acidic strength of hydrogen halides in aqueous solution is HF < HCl < HBr < HI.
Reason (R): The order of bond dissociation enthalpy of hydrogen halides is HF > HCl > HBr > HI.

\(E^\circ_{M^{2+}/M}\) (in V) is highest for