Hydrogen

If the atomic mass of a Deuterium atom is approximately $2$ u, what is the molecular mass of a Deuterium molecule ($D_2$)?

Before it was named 'Hydrogen', Henry Cavendish referred to this gas as:

Which type of chemical bond is formed between two hydrogen atoms in an $H_2$ molecule?

How many protons are present in a Tritium atom?

Which property of hydrogen is most similar to the alkali metals in terms of their reactions with non-metals?

When hydrogen reacts with Carbon to form methane ($CH_4$), the bond formed is:

Which of the following is NOT a reason for the unique position of hydrogen?

Which specific property of Hydrogen allows it to be placed in a separate box at the top-center of some versions of the Periodic Table?

The ionization of $H_{2}$ into $2H^{+} + 2e^{-}$ requires $3022\ kJ\ mol^{-1}$ (Total: dissociation + ionization). How does this astronomical energy barrier explain why Hydrogen is a gas while Lithium is a reactive solid?

The 'Hydride Gap' refers to the inability of certain transition metals to form stable hydrides. If Hydrogen were a perfect Halogen, how would this 'gap' change?

Molecular hydrides are also known as:

Which of the following is a saline hydride of an alkaline earth metal?

The bond angle in $CH_4$ is approximately:

Transition metals like Palladium and Platinum can absorb large volumes of hydrogen. This property makes them useful as:

Based on the sequence of Group 15 molecular hydrides shown in the diagram, which of the following chemical or physical properties increases consistently as we move from $NH_3$ to $BiH_3$?

Which of the following is the correct order of increasing ionic character for the given hydrides?

Which of the following p-block elements forms an electron-precise hydride?

Which of the following pairs shows the correct relationship between the type of hydride and its conductivity?

A certain hydride 'A' is used as a fuel in rockets. It is prepared by the action of $LiAlH_4$ on $SiCl_4$. Identify 'A'.

Which of the following hydrides can be distilled without decomposition?

Which of the following is an oxide that reacts with $D_2O$ to form a deuterated acid?

If an animal is given only heavy water to drink, what is the likely outcome?

The specific heat capacity of heavy water is:

Which of the following properties of $D_2O$ is lower than that of $H_2O$?

When $D_2O$ is electrolyzed, the gas collected at the anode is:

The term 'Heavy Water' can also sometimes refer to water containing which other isotopes of oxygen, though $D_2O$ is the standard?

Which of the following ions has a lower ionic mobility in $D_2O$ than in $H_2O$?

When $D_2O$ is electrolyzed using Nickel electrodes, which of the following is collected at the anode?

Which property of heavy water is utilized in the study of 'Heavy Water Ice' sinking in ordinary liquid water?

In a hypothetical reaction where the activation energy is determined primarily by the breaking of an $X-H$ or $X-D$ bond, the ratio of rate constants $k_H/k_D$ is called the:

The dielectric constant of hydrogen peroxide is higher than that of water. This makes it a:

Which of the following ions is formed when hydrogen peroxide acts as a weak acid in an aqueous solution?

In $H_2O_2$, the $O-O$ bond is a:

Hydrogen peroxide can be used as an antiseptic under the name:

In an alkaline medium, hydrogen peroxide reacts with potassium ferricyanide ($K_3[Fe(CN)_6]$) to produce potassium ferrocyanide ($K_4[Fe(CN)_6]$) and a gas ($G$) as illustrated in the simplified flowchart. Identify the identity of Gas $G$ and the chemical role of $H_2O_2$ in this specific reaction.

Hydrogen peroxide acts as a reducing agent in its reaction with:

When hydrogen peroxide is added to a solution containing $Fe^{2+}$ ions and $SCN^-$ ions, what is observed?

Calculate the volume of oxygen gas (at STP) evolved when $50 \text{ mL}$ of a '$20$ volume' $H_{2}O_{2}$ solution is heated.

What is the O-O-H bond angle in the solid phase of $H_{2}O_{2}$?

In the presence of $H_{2}O_{2}$, black lead sulfide ($PbS$) turns white. This is because: