1. Tardigrade
  2. Question
  3. Chemistry
  4. How many of the following trends is(are) CORRECT with respect to properties of hydrides of group 16 elements? i. Bond angle: H 2 O > H 2 S > H 2 Se > H 2 Te ii. Volatility: H 2 O < H 2 S > H 2 Se > H 2 Te iii. Thermal stability: H 2 O > H 2 S > H 2 Se > H 2 Te iv. Acidic strength: H 2 O > H 2 S > H 2 Se > H 2 Te

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Q. How many of the following trends is(are) CORRECT with respect to properties of hydrides of group $16$ elements?
i. Bond angle: $H _{2} O > H _{2} S > H _{2} Se > H _{2} Te$
ii. Volatility: $H _{2} O < H _{2} S > H _{2} Se > H _{2} Te$
iii. Thermal stability: $H _{2} O > H _{2} S > H _{2} Se > H _{2} Te$
iv. Acidic strength: $H _{2} O > H _{2} S > H _{2} Se > H _{2} Te$

The p-Block Elements - Part2

Solution:

$(i), (ii)$ and $(iii)$ are correct. Acidic strength of the hydrides of group $16$ follows the trend: $H _{2} O < H _{2} S < H _{2} Se < H _{2} Te$