Which of the following process is used in the extractive metallurgy of magnesium?

Which of the following statements about gold (Au) element are correct ?
(A) quad Gold occurs in nature in native state.
(B) quad Gold discolves in aqua-regia.
(C) quad Gold is extracted by leaching the metal with dilute NaCN .
(D) \quad Leaching is followed by replacement reaction.
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Which of the following oxides is most basic?

Which refining method is represented by the following equations ?
\(Zr+2I_2 \rightarrow ZrI_4\)
\(ZrI_4 \rightarrow Zr+ 2I_2\)

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The coordination compounds are of great importance. These compounds are widely present in the mineral, plants and animal world and are known to play many important functions in the area of analytical chemistry, metallurgy, biological systems, industry and medicine. For example, coordination compounds find use in many qualitative and quantitative chemical analysis. Some important metal extraction and purification make use of complex formation. Hardness of water can be estimated by stable complex formation of Ca\(^{2+}\) and Mg\(^{2+}\)
Wilkinson catalyst used for hydrogenation of alkenes is a complex of ___________.

If the concentration of a reactant is reduced to half, the rate of reaction becomes \(\frac{1}{4}\). What will be the order of reaction?

Match List-I (type of linkages) with List-II (Biomolecules)

List-I (Type of linkage)	List-II (Biomolecule)
(A) Glycosidic linkage	(I) Tertiary structure of proteins
(B) Peptide Linkage	(II) Disaccharide
(C) Phosphodiester linkage	(III) Primary structure of proteins
(D) Disulfide linkage	(IV) Nucleotide

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What is the correct sequence of steps involved in treating SCID (ADA deficiency) through Biotechnology.
(A) A functional ADA-cDNA introduced in lymphocytes.
(B) Lymphocytes returned to the body of the patient.
(C) Lymphocytes from the blood of the patient are grown in culture outside the body.
(D) Periodic infusion of such genetically engineered lymphocytes required.
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Potassium tetrahydroxydozincate(II) can be represented by which of the following formula?

Which of the following steps are included to make a healthy society?
(A) Aware the people to uncontrolled population growth
(B) Aware the people to social evil like sex abuse
(C) Aware the people to sex related crime
(D) The Peoples lead to increase the mortality rate of mother and infant
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Read the passage carefully. Attempt the questions.
In our body, cell growth and differentiation is highly controlled and regulated. In cancer cells, there is breakdown of these regulatory mechanisms. Cancerous cells just continue to divide giving rise to masses of cells called tumors. Benign tumors normally remain confined to their original location. The malignant tumors, on the other hand are a mass of proliferating cells. These cells actively divide and starve the normal cells by competing for vital nutrients. Cells sloughed from such tumors reach distant sites through blood, and wherever they get lodged in the body, they start a new tumor there. This property is called metastasis. Transformation of normal cells into cancerous cells may be induced by physical, chemical or biological agents called carcinogens.
The statement which is correct for cancer cells:

Select the correct statements about lanthanoids:
(A). Lanthanoids are good conductors of heat and electricity
(B). Ln oxides are used as phosphors in TV screens
(C). Their Melting points range between 2100 to 2300 K
(D). It is used for the production of alloy steels
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Arrange the following in increasing order of basic strength in aqueous solution :
(A) \(C _6 H _6 NH _2\)
(B) \(C _2 H _5 NH _2\)
(C) \(\left( C _2 H _6\right)_2 NH\)
(D) \(NH _3\)
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