State whether the following statements are True or False:
$(1)$ The metal and non-metal elements of $d$-block react with hydrogen to give molecular hydrides.
$(2)$ At normal temperature,dihydrogen reacts violently with dioxygen.

(A) $(1)$ False. $d$-block elements form interstitial (or metallic) hydrides,not molecular hydrides. Molecular hydrides are typically formed by $p$-block elements.
$(2)$ False. Dihydrogen does not react with dioxygen at normal temperature because the $H-H$ bond dissociation energy is very high. The reaction requires a catalyst,heating,or an electric spark to proceed.