BF3 is a planar and an electron deficient compound. Hybridization and number of electrons around the central atom, respectively are: 

1. sp2 and 6 2. sp2 and 8
3. sp3 and 4 4. sp3 and 6
Subtopic:  Hybridisation |
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Level 2: 60%+
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The following solutions were prepared by dissolving 10 g of glucose (C6H12O6) in 250 ml of water (P1), 10 g of urea (CH4N2O) in 250 ml of water (P2) and 10 g of sucrose (C12H22O11) in 250 ml of water (P3). The decreasing order of osmotic pressures of these solutions is:

1. P2 > P3 > P1 2. P3 > P1 > P2
3. P2 > P1 > P3 4. P1 > P2 > P3
Subtopic:  Osmosis & Osmotic Pressure |
 74%
Level 2: 60%+
NEET - 2021
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Match Column I with Column II and mark the correct options:
Column I 
(Compounds)
Column II
(Configurations)
A.  \(\mathrm{TiCl}_4\) (i). \(e^3 t_2^3\)
B.  \(\mathrm{FeO_4{^{2-}}} \) (ii). \(e^2 t_2^0\)
C.  \(\mathrm{FeCl_4{^{2-}}}\) (iii). \(e^2 t_2^3\)
D.  \(\mathrm{MnCl_4{^{2-}}} \) (iv). \(e^0 t_2^0\)

1. A(iv), B(ii), C(i), D(iii)
2. A(iv), B(iii), C(ii), D(i)
3. A(i), B(ii), C(iii), D(iv)
4. A(ii), B(iv), C(iii), D(i)
Subtopic:  VBT, CFT & their Limitations |
 80%
Level 1: 80%+
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Ethylene diaminetetraacetate (EDTA) ion is:

1. Bidentate ligand with two "N" donor atoms
2. Tridentate ligand with three "N" donor atoms
3. Hexadentate ligand with four "O" and two "N'' donor atoms
4. Unidentate ligand
Subtopic:  Ligands |
 87%
Level 1: 80%+
NEET - 2021
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The IUPAC name of the product that formed in the following chemical reaction is:
\(\text{Acetone}\xrightarrow[\bf\text{(ii) H}_2\text{O, H}^+]{\bf\text{(i) C}_2\text H_5\text{MgBr, dry Ether}}\text{Product } \)

1. Pentan-3-ol 2. 2-Methyl butan-2-ol
3. 2-Methyl propan-2-ol 4. Pentan-2-ol
Subtopic:  Alcohols: Preparation & Properties |
 75%
Level 2: 60%+
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The major product formed in the dehydrohalogenation reaction of 2-Bromo pentane is Pent-2-ene. This product formation is based on:
1. Hofmann Rule 2. Huckel's Rule
3. Saytzeff's Rule 4. Hund's Rule
Subtopic:  Chemical Properties |
 87%
Level 1: 80%+
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The correct example of metal displacement reaction among the following is:

1. \(\mathrm{Fe}+2 \mathrm{HCl} \rightarrow \mathrm{FeCl}_2+\mathrm{H}_2 \uparrow \)
2. \(2 \mathrm{~Pb}\left(\mathrm{NO}_3\right)_2 \rightarrow 2 \mathrm{PbO}+4 \mathrm{NO}_2+\mathrm{O}_2 \uparrow \)
3. \( 2\text {KClO}_3 \xrightarrow {\Delta}2 \text {KCl} + 3 \text O_2 \)
4. \(\mathrm{Cr}_2 \mathrm{O}_3+2 \mathrm{Al} \xrightarrow {\Delta} \mathrm{Al}_2 \mathrm{O}_3+2 \mathrm{Cr}\)
Subtopic:  Introduction to Redox and Oxidation Number |
 70%
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Which of the following options correctly represents the relationship between \(C_p \text { and } C_V\) for one mole of an ideal gas?

1. \(C_P=R C_V \) 2. \(C_V=RC_P \)
3. \(C_P+C_V=R \) 4. \(C_{{P}}-{C}_{{V}}={R}\)
Subtopic:  Cp & Cv |
 89%
Level 1: 80%+
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A deficiency in which of the following vitamins leads to a decrease in red blood cell (RBC) production?
1. Vitamin B1 2. Vitamin B2
3. Vitamin B12 4. Vitamin B6
Subtopic:  Vitamins, Hormones & Enzymes |
 87%
Level 1: 80%+
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Which of the following oxides is not expected to react with sodium hydroxide?
1. BaO
2. SO3
3. Al2O3
4. SiO2
Subtopic:  Nature of Compound |
 67%
Level 2: 60%+
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