Dakshana Mock Test Season VI

Dakshana Mock Test Season VI

1] A molecule of Acetone has

i. only single bonds
ii. only double bonds
iii. only triple bonds
iv. double bond and single bond

2] In which of the following compounds, COOH is the functional group?

i. Butanone
ii. Butanol
iii. Butanoic acid
iv. Butanal

3] The soap molecule 'sodium stearate' has a

i. hydrophilic head and a hydrophobic tail
ii. hydrophobic head and a hydrophilic tail
iii. hydrophobic head and a hydrophobic tail
iv. hydrophilic head and a hydrophilic tail

4] The name of the compound CH3CH2COCH3 is

i. Butanoic acid
ii. Butanone
iii. Propylmethyl Ether
iv. None of these

5] The heteroatoms present in Chloroacetic acid are

a.oxygen
b.carbon
c.hydrogen
d.chlorine

i. (a) and (b)
ii. (b) and (c)
iii. (c) and (d)
iv. (a) and (d)

6] Heating an alcohol with molecular formula C3H8O at 443K with excess concentrated sulphuric acid results in the dehydration of alcohol to give a compound A. How many single bonds are present in compound A?

i. 6
ii. 7
iii. 8
iv. 9

7] Which of the following will undergo addition reactions?

i. CH4
ii. C3H8
iii. C4H10
iv. C6H12

8] Identify 'A' in the following reaction:

CH3CH2CH2COOH + Na2CO3 → A + CO2 + H2O

i. CH3CH2CH2COONa
ii. NaHCO3
iii. NaOH
iv. None of these

9] In diamond, each carbon atom is bonded to 4 other carbon atoms to form

i. a hexagonal array
ii. a rigid, 3-dimensional structure
iii. a structure in the shape of a football
iv. a structure of a ring

10] Which of the following compounds of carbon does not consist of ions?

i. CHCl3
ii. CaCO3
iii. NaHCO3
iv. Ca2C

11] While cooking, if the bottom of the vessel is getting blackened on the outside, it means that

i. the food is not cooked completely
ii. the fuel is not burning completely
iii. the fuel is wet
iv. the fuel is burning completely

12] Anion is formed if

i. Atom gains electrons
ii. Atom loses electrons
iii. Proton is lost by the atom
iv. Atom shares electron

13] CH3CH2OH ---(Alkaline KMnO4 + Heat)---> CH3COOH
In the above reaction, alkaline KMnO4 acts as

i. reducing agent
ii. oxidizing agent
iii. catalyst
iv. dehydrating agent

14] Which of the following elements belongs to the same group as Barium in Modern Periodic Table?

i. Carbon
ii. Hydrogen
iii. Strontium
iv. Rubidium

15] Where would you locate the element with electronic configuration 2,8,4 in the Modern Periodic Table?

i. Group 8
ii. Group 2
iii. Group 4
iv. Group 14

16] An element which is an essential constituent of all organic compounds belongs to

i. Group 12
ii. Group 14
iii. Group 15
iv. Group 16

17] The maximum number of electrons that can be accommodated in a shell depends on the formula 2n2, where 'n' is the number of the given shell from the nucleus. With this information find the total number of electrons in M shell.

i. 8
ii. 10
iii. 18
iv. 36

18] An element X from group 2 of the Periodic Table reacts with the element Y from group 17 to form a compound. Give the formula of the compound.

i. XY2
ii. XY
iii. X2Y
iv. None of these

19] Which of the following is isoelectronic with N2?

i. CO+
ii. C2-
iii. O2+
iv. CN-

20] Which of the following elements would gain an electron easily?

i. F
ii. O
iii. Cl
iv. N

21] An element X combines with oxygen to form an oxide X2O3. This oxide is electrically conducting. Write the formula of the compound formed when X reacts with chlorine.

i. XCl3
ii. XCl
iii. XCl2
iv. XCl5

22] Arrange the following elements in the order of the decreasing metallic character.

Na, Si, Cl, Mg, Al

i. Cl > Si > Al > Mg > Na
ii. Na > Mg > Al > Si > Cl
iii. Na > Al > Mg > Cl > Si
iv. Al > Na > Si > Ca > Mg

23] Which among the following elements has the largest atomic radii?

i. Li
ii. Cs
iii. Na
iv. K

24] Arrange halogens in increasing order of their electron affinity.

i. I > Cl > F > Br
ii. I > Br > Cl > F
iii. F > Cl > Br > I
iv. Cl > F > Br > I

25] Isotones possess

i. Same number of protons
ii. Same number of neutrons
iii. Same mass number
iv. Same number of electrons







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