List of top Questions asked in AIIMS- 2006

Two spheres of same size, one of mass $2\, kg$ and another of mass $4 \,kg$, are dropped simultaneously from the top of Qutab Minar (height $=72\, m$ ). When they are $1 \,m$ above the ground, the two spheres have the same :

A boat at anchor is rocked by waves whose crests are $100\, m$ apart and velocity is $25\, m/\sec$. The boat bounces up once in every

A leaf which contains only green pigments, is illuminated by a laser light of wavelength $0.6328\, \mu m$. It would appear to be :

In refraction, light waves are bent on passing from one medium to the second medium, because in the second medium

Thymine is

$K_2Cr_2O_7$ is used as primary standard in volumetric analysis. It has a good solubility in water.

Isopropyl benzene on air oxidation in the presence of dilute acid gives

Lysine is least soluble in water in the $pH$ range

Molecular nitrogen is less reactive than molecular oxygen. The bond length of $N_2$ is shorter than that of oxygen.

For the Daniel cell, $Zn\left| Zn^{2+}\right|\left| Cu^{2+}\right| Cu$ with $E_{\text{cell}} = 1 . 1\, V$, the application of opposite potential greater than $1 . 1\, V$ results into flow of electron from cathode to anode. $Zn$ is deposited at anode and $Cu$ is dissolved at cathode.

$Fe^{3+}$ can be used for coagulation of $As_2S_3$ sol. $Fe^{3+}$ reacts with $As_2S_3$ to give $Fe_2S_3$.

Change in colour of acidic solution of potassium dichromate by breath is used to test drunken drivers. Change in colour is due to complexation of alcohol with potassium dichromate.