MCQ
Which of the following metals has the maximum density?
- APd
- BHg
- ✓Os
- DPt
✓
Answer
Correct option: C.
Os
c
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
On adding excess of $N{H_3}$ solution to $CuS{O_4}$ solution, the dark blue colour is due to
→Boiling point of a $2 \%$ aqueous solution of a nonvolatile solute $A$ is equal to the boiling point of $8 \%$ aqueous solution of a non-volatile solute $B$. The relation between molecular weights of $A$ and $B$ is.
→The most reactive towards $S_{N_1}$ is:
→Assertion : Both rhombic and monoclinic sulphur exist as $S_8$ but oxygen exists as $O_2$.
→Reason : Oxygen forms $p\pi \,-\, p\pi $ multiple bond due to small size and small bond length but $p\pi \,-\,p\pi $ bonding is not possible in sulphur.
The standard reduction potentials of $4$ elements are given below. Which of the following will be the most suitable reducing agent
→$I = -3.04\,V$,
$II = -1.90\,V$,
$III = 0\,V$,
$IV = 1.90\,V$
$20\,ml$ of $0.2\,M Al_2(SO_4)_3$ is mixed with $20\,ml$ of $6.6\,M BaCl_2$. The concentration of $Cl^-$ ion in solution is ......... $M$.
→$\mathop {\boxed{{C_4}{H_9}Cl}}\limits_{Optically\,Active}^{Compound\,A} \xrightarrow[{DMSO}]{{NaCN}}$ $[R]-2-$ methyl Butane Nitrile ; Identify compound $'A'$ ?
→$C{r_2}O_7^{2 - } + {I^ - } \to {I_2} + C{r^{3 + }}$
→${E^0}_{cell} = 0.79\;V$
$E_{C{r_2}O_7^{2 - }}^0 = 1.33\;V,\;{E^0}_{{I_2}}$ is ........... $\mathrm{V}$
Identify correct statement for sucrose
Benzyl isocyanide can be obtained by:
Choose the correct answer from the options given below: