What product(s) is formed when an Alkyl halide undergoes ammonolysis ?
(A) Primary amine
(B) Secondary amine
(C) Quaternary ammonium salt
(D) Tertiary amine
Choose the correct answer from the options given below:

Which of the following is not correct?
A. \(La(OH)_3\) is less basic than \(Lu(OH)_3\)
B. In Lanthanoid series, ionic radius of \(M^{3+}\) ion decreases from \(La\) to \(Lu\).
C. \(La\) is an element of transition series rather than a Lanthanoid series.
D. Atomic radii of \(Zr\) and \(Hf\) are the same because of Lanthanoid contraction.
Choose the correct answer from the options given below:

The correct order of dipole moment of the different methyl halides is :

The correct IUPAC name of the following compound is

Read the passage carefully and answer the questions
The carbonyl group of aldehydes and ketones is highly polar. The positively charged carbon is readily attacked by electron-rich nucleophile and the negatively charged oxygen atom is attacked by an electro-deficient electrophile. Aldehydes and ketones undergo nucleophilic addition reactions in the presence of acid or a base. The mechanism involves attack of a nucleophile on the electron deficient carbonyl carbon to form a tetrahedral intermediate. A new bond is formed between the carbon and oxygen. Protonation of the anion furnished by the reaction medium yields a neutral addition product. The addition product is same whether the reaction is catalyzed by acid or a base. For example in the presence of base aldehydes and ketones react with hydrogen cyanide to form cyanohydrin.
The source of nucleophile in the base catalyzed cyanohydrin formation is:

In the following diagram, to prevent osmosis, if excess pressure is applied on one side of the semipermeable membrane (SPM), then I, II, III and IV are, respectively,

(A) Solution
(B) \(P_{\text {atm }}\)
(C) \(P_{\text {atm }}+\Pi\)
(D) Solvent
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If the standard electrode potential, \(E_{\text {cell }}^{\circ}=1.10 V\), then the \(E_{\text {cell }}\) for the following reaction at 298 K is
\(Zn ( s )+ Cu ^{2+}(0.1 M ) \rightarrow Zn ^{2+}(0.01 M )+ Cu ( s )\)

Read the paragraph given below and answer the question.
Sutton and Boveri argued that the pairing and separation of a pair of chromosomes would lead to the segregation of a pair of factors they carried. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance. Following this synthesis of ideas, experimental verification of the chromosomal theory of inheritance by Thomas Hunt Morgan and his colleagues, led to discovering the basis for the variation that sexual reproduction produced. Morgan worked with the tiny fruit files, which were found very suitable for such studies. They could be grown on simple synthetic medium in the laboratory. They complete their life cycle in a short span of time and a single mating could produce a large number of progeny flies. Also, there was a clear differentiation of the sexes the male and female flies are easily distinguishable. Also, it has many types of hereditary variations that can be seen with low power microscopes.
Which of the following scientist worked with Drosophila?

Which of the following compounds will be repelled when placed in an external magnetic field?

Which of the following is not a property of \(\alpha\)-sulphur ?

Multiple additions of new genes or alleles to the new population and their loss from the old population of a particular place due to migration is known as:

Speed of the Radiowaves, Gamma rays, X-rays and Microwaves are represented by \( V_R, V_G, V_X \) and \( V_M \), respectively in free space. Which option is correct?

Read the following paragraph and answer the given questions.
Cancer detection is based on biopsy and histopathological studies. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Do you know why mother's milk is considered very essential for the new-born infant? The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal. The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Drugs like barbiturates, amphetamines, benzodiazepines, and other similar drugs, that are normally used as medicines to help patients cope with mental illnesses like depression and insomnia, are often abused. Morphine is a very effective sedative and painkiller, and is very useful in patients who have undergone surgery.
The drug, which is very effective sedative and painkiller and useful for patients who have undergone surgery is -