Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
The incorrect statement among the following regarding the molecules of $\text{CH}_4$, $\text{NH}_3$, and $\text{H}_2\text{O}$ is:
The species, having bond angles of 120° is :
Amongst the following, which one will have maximum 'lone pair - lone pair' electron repulsions?
Light with an average flux of $20 \text{ W/cm}^2$ falls on a non-reflecting surface at normal incidence having surface area $20 \text{ cm}^2$. The energy received by the surface during time span of 1 minute is :
The similarity between DNA and RNA is that both:
According to IUPAC nomenclature, sodium nitroprusside is named as:
The complex that does not exhibit optical isomerism is: (en = ethylenediamine)
Which of the following will give a pair of enantiomorphs? (en = $\text{NH}_2\text{CH}_2\text{CH}_2\text{NH}_2$)
Which one of the following statements is incorrect related to Molecular Orbital Theory?
The most stable compound, among the following, is:
Match the complex ions in List-I with their corresponding hybridization in List-II. **List-I (Complex ion)** (A) $[Ni(CN)_4]^{2-}$ (B) $[CoF_6]^{3-}$ (C) $[Co(C_2O_4)_3]^{3-}$ (D) $[NiCl_4]^{2-}$ **List-II (Hybridisation)** (I) $sp^3$ (II) $d^2sp^3$ (III) $sp^3d^2$ (IV) $dsp^2$ Choose the correct answer from the options given below:
$[\text{Co}(\text{NH}_3)_4(\text{NO}_2)_2]\text{Cl}$ can show:
A ball is thrown vertically downward with a velocity of $20 \text{ m/s}$ from the top of a tower. It hits the ground after some time with a velocity of $80 \text{ m/s}$. The height of the tower is : ($g = 10 \text{ m/s}^2$)
Expressed Sequence Tags (ESTs) refers to : (1) Genes expressed as RNA (2) Polypeptide expression (3) DNA polymorphism (4) Novel DNA sequences
In which of the following molecules, all atoms are coplanar?
The correct order of ionic character among CaH$$_2$$, BeH$$_2$$ and BaH$$_2$$ is:
Identify the complex among the following that is not expected to exhibit isomerism:
The crystal field stabilization energy (CFSE) for $[CoCl_6]^{4-}$ is $18000 \text{ cm}^{-1}$. The CFSE for $[CoCl_4]^{2-}$ will be:
Among the options given below, identify the isoelectronic species:
For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection? (1) Western Blotting Technique (2) Southern Blotting Technique (3) ELISA Technique (4) Hybridization Technique