1. Tardigrade
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  4. Assertion: Acidic character of group 16 hydrides increases from H2O to H2Te. Reason: Thermal stablility of hydrides decreases down the group.

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Q. Assertion : Acidic character of group $16$ hydrides increases from $H_2O$ to $H_2Te$.
Reason : Thermal stablility of hydrides decreases down the group.

The p-Block Elements - Part2

Solution:

The acidic character increases down the group and thermal stability of hydrides decreases down the group due to decrease in bond $(H—E)$ dissociation enthalpy down the group.