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Which of the following is a correct match regarding Intra Uterine Devices (IUDs)?
Which of the following statement is correct for the stability of ions of ethyl alcohol and phenol:
Consider the following species: CN$$^+$$, CN$$^-$$, NO and CN. The highest bond order associated with:
A small telescope has an objective of focal length $140\text{ cm}$ and an eyepiece of focal length $5.0\text{ cm}$. The magnifying power of the telescope for viewing a distant object is:
The velocity of a small ball of mass $M$ and density $d$, when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is $\frac{d}{2}$, then the viscous force acting on the ball will be
The production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood using:
Two cars P and Q start from a point at the same time in a straight line and their positions are represented by $x_P(t) = at + bt^2$ and $x_Q(t) = ft - t^2$. At what time do the cars have the same velocity?
Which experimental material was used by Taylor and colleagues to prove that DNA in chromosomes replicates semiconservatively?
MTP is practised mainly to:
Dimensions of charge are:
Arrange the following hydrides in the order of decreasing bond angle: (A) SbH$$_3$$ (B) AsH$$_3$$ (C) PH$$_3$$ (D) NH$$_3$$
If the velocity of a particle is $v = At + Bt^2$, where $A$ and $B$ are constants, then the distance travelled by it between 1 s and 2 s is:
The enthalpy of neutralization of which of the following acids and bases is nearly –13.6 Kcal [Roorkee 1999]
All of the following are included in 'ex-situ conservation' except
Two particles $A$ and $B$, move with constant velocities $\vec{v}_1$ and $\vec{v}_2$ respectively. At the initial moment, their position vectors are $\vec{r}_1$ and $\vec{r}_2$ respectively. The condition for particles $A$ and $B$ for their collision will be:
Which of the following cannot be detected in a developing foetus by amniocentesis?
A horizontal ray of light is incident on a right-angled prism with a prism angle of $6^{\circ}$. If the refractive index of the material of the prism is 1.5, then the angle of emergence will be:
As per ABO blood grouping system, the blood group of father is B+, mother is A+ and child is O+. Their respective genotype can be
The heat of combustion of carbon to $\text{CO}_2$ is $-393.5 \text{ kJ/mol}$. The heat released upon the formation of $35.2 \text{ g}$ of $\text{CO}_2$ from carbon and oxygen gas is:
Assuming that fur colour of an animal ranges from dark, intermediates shades, to white. A cross is made between a male (AABBCC) with dark fur colour and a female (aabbcc) with white fur colour. What would be the fur colour of F1 generation?