Low oxygen concentration in the human body at high altitudes is due to the __________ .

The order of a certain reaction with respect to Cl\(^-\) ion is - 1.
The Cl\(^-\) is

Read the passage carefully and answer the questions
Carbohydrates such as cane sugar, glucose, starch etc. belong to a class of naturally occurring organic compounds. Structurally these are polyhydroxy aldehydes or ketones or the compounds which produce such units on hydrolysis. Carbohydrates which are sweet in taste are called sugars. Theses sugars can be reducing or non-reducing. Monosaccharides cannot be hydrolyzed to simpler units whereas Oligosaccharides yield two to ten monosaccharide units on hydrolysis. Polysaccharides yield large number of monosaccharide units on hydrolysis. This class of biomolecules is essential for living systems as they serve as storage molecules in plants and animals. In addition, they provide raw materials for important industries like furniture, textiles, paper, lacquers and breweries. Two aldopentose form important constituents of nucleic acids. Carbohydrates are also called saccharides (Greek: sakcharon which means sugar). Sugar which is used in household and in milk also comes under this class of biomolecules.
Sucrose on hydrolysis yields

Match List-l with List-II

List-l	List-II
(A) Ambident nucleophiles	(I) Symmetrical object
(B) Plane polarized light	(II) Saytzeff rule
(C) Superimposable mirror image	(III) Cyanides and nitrites
(D) β-elimination reaction	(IV) Nicol Prism

Choose the correct answer from the options given below :

Germanium is a semiconductor because:

Aspartame is used in cold foods and soft drinks even though it is roughly 100 times as sweet as cane sugar and can pose a health hazard because:

Which of the following compound shows optical isomerism ?

In the given figure, the potentiometer wire, AB has a resistance of 5 \( \Omega \) and length 10 m. The balancing length AJ for 0.4 V is nearly:

The order of increasing boiling point for the following compounds is
(A) \(CH_3CH_2CH_2CH_3\)
(B) \(CH_3CH_2CH_2CH_2OH\)
(C) \(C_2H_5OC_2H_5\)
(D) \(CH_3CH_2CH_2CHO\)
Choose the correct answer from the options given below:

The magnifying power of a telescope is 6 in normal adjustment. The distance between its two lenses is 35 cm. The focal lengths of objective and eye-piece are, respectively:

Patients with diabetes have :

In a series LCR circuit \( X_L = X_C \). Which of the following is correct?

Second most abundant element in alloy misch metal is :