List of top Questions asked in AFMC

One-fourth length of a spring of force constant k is cut away. The force constant of the remaining spring will be
Which one is Peat Moss ?
In an experiment, $4 \,g$ of $ M_{2}O_{x} $ oxide was reduced to $2.8 \,g$ of the metal. If the atomic mass of the metal is $ 56\,g\,mol^{-1}, $ the number of $O$ atoms in the oxide is
Number of atoms present in $4.25 \,g$ of $NH_3 $ is
If $1 \,mL$ of water contains $20$ drops then number of molecules in a drop of water is
A number of condensers, each of the capacitance $1 \, \mu F$ and each one of which gets punctured if a potential difference just exceeding $500 \,V$ is applied, are provided. An arrangement suitable for giving capacitance of $2 \, \mu F$ across which $3000 \,V $ may be applied requires at least
In an organic compound, phosphorus is estimated as
Chemical formula of Prussian blue is
Violet coloured complex obtained in the detection of sulphur is
Isogonic lines are those for which
Nitrogenous bases present in DNA
Binomial nomenclature was given by :
The heat liberated when $1.89\, g$ of benzoic acid is burnt in a bomb calorimeter at $25 ^{\circ} C$ increases the temperature of $18.94\, kg$ of water by $0.632^{\circ} C$. If the specific heat of water at $25^{\circ} C$ is $0.998\, cal/g$ the value of the heat of combustion of benzoic acid is
Organ of Corti helps in
Nitrogen is absorbed by plants in form of
Monocot stem lacks
Xerophytes are mostly
What will be the partial pressure of $He$ and $ O_{2} $ respectively, if $200\,mL$ of $He$ at $0.66 \,atm$ and $400 \,mL$ of $ O_{2} $ at $0.52 \,atm$ pressure are mixed in $400 \,mL$ vessel at $ 20^{\circ}C $ ?
What do you mean by closed vascular bundle?
The optical path of a monochromatic light is same if it goes through $4.0 \,cm$ of glass or $4.5 \,cm$ of water. If the refractive index of glass is $1.53$, the refractive index of the water is
The book origin of Species was written by
Pure benzene freezes at $5.3^{\circ} C$. A solution of $0.223 \,g$ of phenylacetic acid $(C_6H_5CH_2COOH)$ in $4.4\, g$ of benzene $(h_f = 5.12\,kg\,mol^{-1})$ freezes at $4.47^{\circ} C$. From this observation, one can conclude that
Primary, secondary and tertiary amines can be distinguished by
Permanent hardness of water can be removed by adding
Oxalic acid on heating with conc. $ H_2SO_4$ gives