Short Questions
1. Isomerism
Compounds with the same molecular formula but different structures, leading to different properties.
2. Optical Activity
The ability of a compound to rotate plane-polarized light, typically due to the presence of chiral centers.
3. Chiral vs Achiral
- *Chiral*: Molecules that are non-superimposable on their mirror image.
- *Achiral*: Molecules that are superimposable on their mirror image.
4. Meso Compounds
Achiral compounds that contain chiral centers but have internal
...Enantiomer
An enantiomer is a type of stereoisomer that is a non-superimposable mirror image of another molecule. Enantiomers have the same molecular formula and sequence of bonded atoms but differ in their three-dimensional arrangement of atoms in space.
Meso Compound
A meso compound is a type of stereoisomer that has a superimposable mirror image, despite having chiral centers. Meso compounds are achiral molecules with chiral centers.
d/l Notation
The d/l notation refers to the direction of optical
...TRADING AND SETTLEMENT PROCEDURE OF INDIAN STOCK EXCHANGE
> Trading information from Exchange to NSCCL (real-time and end of day trade file).
> The NSCCL notifies the clearing members/custodians who have returned the form of the details of the completed trade. NSCCL applies multilateral netting and establishes obligations based on the affirmation.
> Downloading of the obligation and payment-in advice of funds/assets.
> Directing clearing banks to release funds by the pay-in deadline.
>
You're referring to script languages. Here are some popular ones:
1. *Python*: Known for its simplicity and versatility, Python is widely used in web development, data analysis, artificial intelligence, and more.
2. *JavaScript*: Primarily used for client-side scripting in web development, JavaScript is also popular for server-side development with frameworks like Node.js.
3. *Ruby*: A dynamic language known for its simplicity and ease of use, Ruby is often used in web development with the Ruby
Regression analysis is a statistical technique used to model and analyse the relationship between a dependent variable (outcome) and one or more independent variables (predictors). It helps in: 1. Understanding relationships between variables. 2. Making predictions based on past data. 3. Identifying key factors influencing an outcome. Types of Regression A. Linear Regression Models a relationship between the dependent variable (Y) and independent variable(s) (X) assuming a linear relationship. (
[The Wolff-Kishner reduction and the Dakin reaction are two important organic reactions:
Wolff-Kishner Reduction
1. *Reaction type*: Reduction reaction
2. *Purpose*: Converts carbonyl groups (aldehydes or ketones) to methylene groups (-CH2-)
3. *Reagents*: Hydrazine (N2H4) and a strong base (usually KOH or NaOH)
4. *Conditions*: High temperature and pressure
Dakin Reaction
1. *Reaction type*: Oxidation reaction
2. *Purpose*: Converts benzaldehydes to phenols
3. *Reagents*: Hydrogen peroxide (H2O2)
...First-Order Logic:First-Order Logic (FOL) is a formal system used in AI to express knowledge about objects, their properties, and relations. Unlike propositional logic, which only handles true or false values, FOL allows the use of quantifiers like "for all" (∀) and "there exists" (∃), making it more expressive. FOL uses predicates to describe properties of objects and relationships between them. For example, "All humans are mortal" can be written as ∀x(Human(x) → Mortal(x)). FOL is widely
Tags and attributes-Tags are keywords (like <p> or <img>) enclosed in angle brackets that mark the start and end of HTML elements, defining the structure and type of content.
Attributes provide additional information about an HTML element. They are placed within the opening tag (e.g., href="url", src="image.jpg") and specify properties or characteristics of the element.
Here's the short difference between ordered and unordered lists with examples:
* Ordered List (<ol>): Used when
1) Pour une base de données repartie avec des SGBD hétérogènes, quelle est l’approche qui demande moins de traducteurs pour la conversion des données et des requêtes depuis un modèle vers un autre? Approche pivot.
2) Est-ce qu’on peut avoir deux objets identiques et égaux dans une BDO ? justifier
Non, car chaque objet a son propre identificateur.
3) Suivant l’approche fragmentée pour l’organisation du dictionnaire de données, expliquer comment la manipulation des données distantes