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Q.1: Sharing of 1 electron pair by one specie forms-------- ?

1. Single covalent bond
2. Hydrogen bond
3. Double covalent bond
4. Coordinate covalent bond

D

Q.2: The test which is used for the identification of amino-acids is---------- ?

1. Ninhydrin test
2. Molisch test
3. Biuretic test
4. Benedict test

A

Q.3: Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?

1. The nature of its oxides
2. The charge on its ions
3. The formula of its oxide
4. Its number of isotopes

D

Q.4: Shielding effect across the period--------- ?

1. Increases
2. Decreases
3. Can not be predicted
4. Remains constant

D

Q.5: The complete reduction carboxylic acid results in the formation of---------- ?

1. Alkyne
2. Alkene
3. Alkane
4. Alcohol

C

Q.6: Which of the following possesses maximum hydration energy ?

1. Na+
2. K+
3. Mg+2
4. Ca+2

C

Q.7: The technique used to separate components of mixture in solid phase ?

1. Crystallization
2. Filtration
3. Sublimation
4. Solvent extraction

C

Q.8: Which of the following is not considered as an intermolecular force between molecules ?

1. Coordinate covalent bonds
2. Hydrogen bonds
3. Debye forces
4. London dispersion forces

A

Q.9: Sintered glass is a porous material used for ---------- ?

1. absorption
2. adsorption
3. filtration
4. sublimation

C

Q.10: The diffusion of gases at absolute zero will be--------- ?

1. Unchanged
2. Slightly decreased
3. Slightly increased
4. Zero

D