List of top Questions asked in GAT-B

Three taps A, B, and C together can fill an empty cistern in 10 minutes, tap A alone can fill it in 20 minutes and tap B alone in 40 minutes. How long will tap C alone take to fill it?
In a class of 35 students, 24 like to play cricket and 16 like to play football. Also, each student likes to play at least one of the two games. How many students like to play both cricket and football?
What is the chance that a leap year, selected at random, will NOT have 53 Sundays as well as 53 Mondays?
If the price of the sugar is raised by 25%, find by how much percent a homemaker should reduce the consumption of sugar so as not to increase his/her expenditure?
Choose the correct order of increasing acidity for the following compounds: A. Benzoic acid, B. 4-Methoxybenzoic acid, C. 4-Nitrobenzoic acid.
In the following reaction $P_{4}(g)+6Cl_{2}(g) \rightleftharpoons 4PCl_{3}(g)$, equilibrium is established by adding equal moles of $P_{4}(g)$ and $Cl_{2}(g)$. Therefore, at equilibrium:
The alkaline nature of amines is due to the:
The following structure represents: $R_2C=N-OH$
What is the half-life of a zero order reaction that takes 25 minutes for 80% completion?
The ratio of the velocity of the hydrogen molecule to that of the oxygen molecule under identical conditions is:
The rate of a reaction, 2A + B $\rightarrow$ Products, is $Rate = k[A]^2[B]$. The value of the rate constant (k) can be increased by:
Which one of the following represents the correct electronic orbital configuration of Phosphorus (+3) ion ($P^{3+}$)?
The boiling points of four liquids are shown below:
An organic compound contains 69.77% C, 11.63% H and 18.6% O. Its molecular formula is same as its empirical formula. The number of carbon atoms present per molecule would be:
What is the molarity of pure acetic acid? Assume density of acetic acid = 1 g/ml and Molecular Weight = 60 g/mol.
What is the approximate vapor pressure of an isopropanol solution containing 9.2 g of a non volatile solute, glycerol ($C_{3}H_{8}O_{3}$) and 60 g of isopropanol ($C_{3}H_{8}O$) at $82^{\circ}C$? Given vapor pressure of pure isopropanol at $82^{\circ}C$ is 100 kPa.
Starting with three different amino acids, how many different tripeptides can be made, assuming that each amino acid can be used more than once?
Point charges, +q each is placed at the corners of a triangle, square and regular pentagon. If the sides are a each, the electric field at the center will be:
The correct order of increasing acidic behavior of the following compounds is:
In uniform circular motion, which one of the following properties changes with time?
Which one of the following attributes of an electromagnetic wave remains constant when it enters from air to water?
Moving electron (velocity v) produces a magnetic field B such that:
Energy of a photon of wavelength 410 nm is equal to the band gap of a semi-conductor. What is the minimum energy required to create an electron-hole pair? ($h = 1 \times 10^{-15}$ eV.s, $c = 3 \times 10^{8}$ m/s)
Which one of the following force does not act on a cyclist when he/ she bends on a horizontal turn?
The limit of resolution of a light microscope is determined by: