Elements of group-15, 16 and 17 form compounds with hydrogen with general formula MH3, \(H 2 M\) and HX (called hydrogen halides). Stability of these hydrides, along with M-H bond strength and basic nature decreases down the group. Boiling point of these hydrides mainly depends on the strength of their inter molecular forces.
Bond angle (HMH) among hydrides of group-16 decreases down the group because:

The IUPAC name of [CoCl₂ (en)₂] Cl complex is :

Match the statement of set of orbitals given in List-I with orbitals and energy separation given in List-II

List – I (Statements)	List-II (Orbitals and energy separation)
(A) \(t_{2 g}\) set of orbitals in octahedral crystal field and energy separation from barycentre	(I) \(d_{x^2-y^2}, d_{z^2}\) and \(3 / 5 \Delta_t\)
(B) \(e_g\) set of orbitals in octahedral crystal field and energy separation from barycentre	(II) \(d_{x y}, d_{x z}, d_{y z}\) and \(2 / 5 \Delta_t\)
(C) \(t_2\) set of orbitals in tetrahedral crystal field and energy separation from barycentre	(III) \(d_{x^2-y^2}, d_{z^2}\) and \(3 / 5 \Delta_0\)
(D) \(e\) set of orbitals in tetrahedral crystal field and energy separation from barycentre	(IV) \(d_{x y}, d_{x z}, d_{y z}\) and \(2 / 5 \Delta_0\)

Choose the correct answer from the options given below:

On mixing A and B, a warm solution is obtained which is \textbf{not} true for the above solution?

If limiting molar conductance of \(NaCl , K _3 PO _4\) and KCl are \(110.2,98.8\) and \(134.6 \Omega^{-1} cm^2 mol^{-1}\) respectively, the limiting molar conductance of \(Na _3 PO _4\) will be: \(\left(\Omega^{-1} cm^2 mol^{-1}\right)\)

Choose the correct statements for ortho and para nitrophenol
(A) They can be separated by steam distillation
(B) o-Nitrophenol undergoes intramolecular hydrogen bonding
(C) P-Nitrophenol undergoes inter molecular hydrogen bonding
(D) p-Nitrophenol is less volatile
Choose the correct answer from the options given below:

When \(CuSO_4\) solution is electrolysed using platinum electrodes, which of the following is true ?

If \(A=\left[\begin{array}{ccc}x+z & 2 & -3 \\ x & 0 & 4 \\ 3 & x-y & 0\end{array}\right]\) is a skew-symmetric matrix, then which of the following are true?
(A) \(y>z>x\)
(B) \(x>y\)
(C) \(x+y+z>0\)
(D) \(z>z\)
Choose the correct answer from the options given below :

If f(x) and g(x) are continuous functions in [0, a] such that f(x) = f(a - x) and g(x)+g(a - x) = a then \(\int_0^a f(x) g(x) d x=\)

A coin is tossed 3 times. If \(X\) denotes the number of heads, then Match List I with List II

LIST I	LIST II
A. \(P(X=0)\)	I. \(\frac{1}{8}\)
B. \(P(X=1)\)	ㅍ. \(\frac{7}{8}\)
C. \(P(X \leq 2)\)	III. \(\frac{4}{8}\)
D. \(P(X \geq 2)\)	IV. \(\frac{3}{8}\)

Choose the correct answer from the options given below:

The height of transmitting antenna and receiving antenna are 45 m and 80 m. If the radius of earth is \( 6.4 \times 10^6 \text{ m} \), then the maximum distance between the two antennas for satisfactory communication in LOS mode is:

A bulb of \( 100 \text{ W} \) glows for \( 6 \text{ hours} \) a day. The units of energy consumed in \( 7 \text{ days} \) would be :

Read the passage carefully. Attempt the questions.
An overwhelming majority (99 per cent) of animals and nearly all plants cannot maintain a constant internal environment. Their body temperature changes with the ambient temperature. In aquatic animals, the osmotic concentration of the body fluids change with that of the ambient air and water osmotic concentration. These animals and plants are simply conformers. Considering the benefits of a constant internal environment to the organism, we must ask why these conformers had not evolved to become regulators. Recall the human analogy we used above; much as they like, how many people can really afford an air conditioner? Many simply 'sweat it out' and resign themselves to suboptimal performance in hot summer months. Very small animals are rarely found in polar regions. During the course of evolution, the costs and benefits of maintainin a constant internal environment are taken into consideration. Some species have evolved the ability to regulate, but only over a limited range of environmental conditions, beyond which they simply conform.
If the stressful external conditions are localised or remain only for a short duration, the organism has five other alternatives for survival.
Identify the animal which is NOT a conformer.