List of top Questions asked in GUJCET

The density of glycerol is higher than propanol due to

For a reaction between gaseous compounds, $\hspace20mm 2A + B \longrightarrow C + D$ the reaction rate = k[A][B]. If the volume of the container is made $\frac{1}{4}$ of the initial, then what will be the rate of reaction as compared to the initial rate?

Which type of dyes are not used do dye nylon and polyester fibres?

Select the detergent that is used to prepare cosmetics.

Which type of endosperm will be formed on hybridisation of diploid female plant and tetraploid male plant ?

Spot the wrong pair

Which of the following is correct for the pairs of cervical nerves and number of cervical vertebrae respectively ?

What is Fovea Centralis ?

Which of the following is not true for hormones ?

Which of the following are located in tunica media of human blood vessels ?

Which of the following is the effect of a plant hormone which is synthesized by more absence of light ?

Which of the following increases area of thoracic cavity during inhalation ?

What happens when concentration of solutes decreases in guard cells ?

How many Calvin cycles are required to produce 10 molecules of glucose ?

Both photosynthesis and respiration require

Electrical force between two point charges is 200 N. If we increase 10% charge on one of the charges and decrease 10% charge on the other, then electrical force between them for the same distance becomes

There are $ 2.0 \times 10^{24} $ molecular dipoles in a paramagnetic salt. Each has dipole moment $ 1.5 \times 10^{23} Am^2 $. Find maximum (saturation) magnetization in the specimen.

Advantages of optical fibre communications over two wire transmission line or co-axial cable transmission are

If 20 J of work has to be done to move an electric charge of 4 C from a point, where potential is 10 V to another point, where potential is V volt, find the value of V.

The order of a reaction for an esterification process is

How many electrons are present in 3d orbital of tetrahedral $K_2 [NiCl_4]$ complex?

A bar magnet of magnetic moment M, is placed in a magnetic field of induction B. The torque exerted on it is

First order derivation of thermo emf produced in thermo-couple with respect to temperature gives ........

A pure Ge specimen is doped with Al. The number density of acceptor atoms is approximately 10$^{21} m^{-3}$. If density of electron hole pair in an intrinsic semiconductor is approximately 10$^{19} m^{-3}$, the number density of electrons in the specimen is

What is the chemical name of the vitamin $B_{12}$ ?