List of top Questions asked in AIIMS- 1999

Which of the following metals is present in brass, bronze and german-silver?
The average kinetic energy of a gas molecules at $27^{\circ} C$ is $6.21 \times 10^{-21} J$. Its average kinetic energy at $227^{\circ}C$ will be
The specific heat of a metal is $0.16.$ Its approximate atomic weight would be
Principal, azimuthal and magnetic quantum numbers are respectively related to
The radii of $F , F ^{-}, O$ and $O ^{-2}$ are in the order of
Angle of dip is $90^{\circ}$ at
Which of the following hormones is a derivative of amino acid?
Which of the following is a colligative property ?
Which of the following is a colligative property?
The equivalent weight of phosphoric acid $\left( H _{3} PO _{4}\right)$ in the reaction: $NaOH + H _{3} PO _{4} \rightarrow NaH _{2} PO _{4}+ H _{2} O$ is
The size of colloidal particle is
For a particle executing simple harmonic motion, which of the following statements is not correct?
Bryophytes are not characterised by
Hormogonia are vegetative reproductive structure present in
The empirical formula of a compound is $CH_2O$. Its molecular weight is $180$. The molecular formula of the compound is
Electrons move away from a region of lower potential to a region of higher potential. Since an electron has a negative charge.
Beilstein test is used for the detection of
When a magnetic substance is heated, then it

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : Reaction of conc. \(H_2SO_4\) on \(NaBr\) and \(NaI\) does not give \(HBr\) and \(HI\).

Reason (R) : \(HBr\) and \(HI\) are oxidised by conc. HSO to Br and I.

In the light of the above statements, choose the correct answer from the options given below

Sporogony of malarial parasite occurs in
A choke coil should have
A choke coil has
Toluene can be oxidised to benzoic acid by
The specific conductivity of $N / 10 KCl$ solution at $20^{\circ} C$ is $0.0212 \,ohm ^{-1} cm ^{-1}$ and the resistance of cell containing this solution at $20^{\circ} C$ is $55 ohm$. The cell constant is
The food chain, in which microorganisms breakdown the energy rich compounds synthesises by producers is called