Which element has the ground state electronic configuration of 1s2, 2s2, 2p6, 3s2, 3p6
- Na
- Ar
- Cl
- S
When 6d orbital is filled, the entering electron goes into
- 7p
- 7f
- 7d
- 7s
If phenol is treated with 3 moles of conc. HNO3 in the presence of H2SO4 what will be the product
- O-nitro phenol and P-nitro phenol
- Picric acid
- P-nitro phenol
- O-nitro phenol
The appearance of a silver mirror in Tollens’ test indicates the presence of which of the following
- An acid
- An aldehyde
- A ketone
- An alcohol
What is the IUPAC name of diisopropyl ketone
- 1,3-Dimethylpropan-2-one
- 2,4-Dlmethylpentan-3-one
- 2,4-Dimethylpentan-2-one
- 1,3-Diisopropylpropan-2-one
In SN1 reactions the correct order of reactivity of alkyl halide is
- Tertiary>secondary>primary
- Secondary>primary>tertiary
- Primary>tertiary >secondary
- Primary>secondary>tertiary
Which of the following reagents can be used to distinguish between 1-Pentyne and 2-Pentyne
- 1 % alkaline dilute KMnO4
- K2Cr207 +H2504
- Br2/CCI4
- AgNO3 + NH4OH
Which of the following transition metal show 3d5 configuration in its +2 oxidation state
- Mn+2
- Zn+2
- Fe+2
- Cu+2
Cell wall of prokaryotic cell is composed of:
- Proteins
- Carbohydrates & Proteins
- Carbohydrates
- Proteins & Lipids
Which structure of prokaryotic cell will play the role of mitochondrion
- Nucleoid
- Spores
- Cyst
- Mesosomes
