List of top Questions asked in NEET (UG)- 1980

Match the columns and identity the correct option
Column I Column II
A. Thylakoids (i) Disc-shaped sacs in Golgi apparatus
B Cristate (ii) Condensed structure of DNA
C Cisternae (iii) Flat membranous sacs in stroma
D Chomatin (iv) Infolding in mitochondria
The unit of rate constant for zero order reaction is
For adsorption of a gas on a solid ,the plot of log x/m vs log P is linear with slope equal to :(n being whole number)
Dwarfness can be controlled by treating the plant with
For the reversible reaction,$ {N_2 (g) + 3H_2 (g) <=> 2NH_3 (g) + heat} $ the equilibrium shifts in forward direction
According to the adsorption theory of catalysis, the speed of the reaction increases because
In the following transition metals, the maximum number of oxidation states are exhibited by
Which of the following undergoes nucleophilic substitution exclusively by $S_N$1 mechanism?
How many plants in the list give below have composite fruits that develop from an inflorescence Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry
1 M and 2.5 litre NaOH solution mixed with another 0.5 M and 3 litre NaOH solution. Then find out molarity of resultant solution : -
Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?
The van der Waals equation of state reduces itself to the ideal gas equation at
Sternum is connected to ribs by
Elbow joint is an example of
In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is :-
The haemoglobin of a human foetus
The energy of second Bohr orbit of the hydrogen atom is $-328\, kJ\, mol^{-1},$ hence the energy of fourth Bohr orbit would be
The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of
When phenol is treated with $CHCl_3$ and NaOH, the product formed is :-
In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be
In India, human population is heavily weighed towards the younger age groups as a result of
Which is the most important factor for continuity of a species from evolutionary point of view?
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of :-