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Chemistry is branch of study the all organic and inorganic chemicals and components
Synthesis of a chemical reaction involves combining reactants to form products through a series of steps.
Identify reactants and products
Determine the stoichiometry of the reaction
Select appropriate reaction conditions (temperature, pressure, catalyst)
Follow reaction mechanism to understand the steps involved
Purify and isolate the final product
The elements in 1 to 10 are Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon.
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
All type of protein and vitamin and synthesis of all components
Ammonia reacts with acids to form ammonium salts, with metals to form amides, and with halogens to form salts.
Ammonia reacts with acids to form ammonium salts (e.g. NH3 + HCl -> NH4Cl)
Ammonia reacts with metals to form amides (e.g. 2NH3 + 2Na -> 2NaNH2 + H2)
Ammonia reacts with halogens to form salts (e.g. NH3 + HCl -> NH4Cl)
Chemical names are unique identifiers for specific substances used in chemistry.
Chemical names can be systematic (following specific rules) or common (based on historical usage)
Examples of chemical names include: sodium chloride, hydrogen peroxide, sulfuric acid
Organic chemistry is the branch of chemistry that deals with the study of carbon-containing compounds.
Focuses on the structure, properties, composition, reactions, and synthesis of carbon-based compounds
Includes the study of hydrocarbons, alcohols, acids, esters, and more
Important in pharmaceuticals, petrochemicals, plastics, and other industries
Inorganic chemistry is the branch of chemistry that deals with the study of inorganic compounds, which do not contain carbon-hydrogen bonds.
Focuses on elements other than carbon
Studies properties and behavior of inorganic compounds
Includes metals, minerals, and non-carbon containing compounds
Examines reactions and synthesis of inorganic substances
Acids react with bases to form salts and water.
Acids react with bases to form salts and water
Acids can also react with metals to form hydrogen gas and a salt
Strong acids like hydrochloric acid can react with carbonates to form carbon dioxide gas, water, and a salt
Top trending discussions
I was interviewed in Sep 2023.
Production of product
To complete filtration process of product
To taste a products
I applied via Naukri.com and was interviewed in Dec 2023. There were 4 interview rounds.
Units of ownership in a corporation or financial asset owned by invertors who exchange capital in return for these units.
Beer's law, also known as the Beer-Lambert law, describes the relationship between the concentration of a solute in a solution and the amount of light absorbed by the solution.
Beer's law states that the absorbance of a solution is directly proportional to the concentration of the solute.
It is commonly used in spectrophotometry to determine the concentration of a substance in a solution.
The equation for Beer's law is A ...
HPLC principle is based on the separation of compounds using a liquid mobile phase and a solid stationary phase.
HPLC stands for High Performance Liquid Chromatography.
It is a widely used analytical technique in chemistry and biochemistry.
The principle involves the separation of compounds based on their interaction with the stationary phase.
The mobile phase, usually a liquid solvent, carries the sample through the stati...
A comprehensive technique to judge the suitability of an individual & his approriateness for admission,job etc.
Technical knowledge refers to the understanding and expertise in a specific field or subject, including its principles, theories, and practical applications.
Technical knowledge involves having a deep understanding of the subject matter and being able to apply it effectively.
It includes knowledge of the principles, theories, and concepts related to the field.
Technical knowledge also encompasses practical skills and hand...
Technical skills refer to the specific knowledge and abilities required to perform tasks related to a particular field or profession.
Technical skills are practical and hands-on abilities that are acquired through training, education, and experience.
They involve the use of tools, equipment, software, and techniques specific to a particular field.
Examples of technical skills for a QA QC Chemist may include proficiency in...
I applied via Walk-in and was interviewed in Jul 2021. There was 1 interview round.
I was interviewed in Sep 2016.
Pneumatic systems use compressed air to transmit power, while hydraulic systems use fluid to transmit power.
Pneumatic systems use air as the working fluid, while hydraulic systems use liquid.
Pneumatic systems are typically used for lighter loads and faster movements, while hydraulic systems are used for heavier loads and slower movements.
Pneumatic systems are generally less expensive and easier to maintain compared to ...
There are several types of welding techniques used in various industries.
Arc welding: Uses an electric arc to create heat and join metals.
MIG welding: Uses a consumable wire electrode and shielding gas to join metals.
TIG welding: Uses a non-consumable tungsten electrode and inert gas to join metals.
Spot welding: Joins metal sheets by applying pressure and heat at specific points.
Flux-cored arc welding: Similar to MIG w...
CNC and lathe machines are used for precision cutting and shaping of materials.
CNC machines use computer programming to control the cutting tools, allowing for highly precise and complex shapes to be created.
Lathe machines are used for turning and shaping cylindrical objects, such as metal rods or wooden dowels.
Both machines are commonly used in manufacturing and engineering industries.
Examples of products made using C...
I applied via Monster and was interviewed before Sep 2019. There were 3 interview rounds.
I worked as a Quality Analyst at XYZ Company for 2 years.
Conducted quality assurance testing on software applications
Identified and reported bugs and issues to development team
Collaborated with stakeholders to ensure product met quality standards
There are three types of validations: front-end, back-end, and database. Each type requires a different approach.
Front-end validation is done on the client-side and checks for user input errors before submitting the form.
Back-end validation is done on the server-side and checks for errors in the data submitted by the user.
Database validation checks for data integrity and consistency in the database.
Handling of validati...
Calibration of instruments is a crucial process to ensure accuracy and reliability of measurements.
Calibration involves comparing the measurements of an instrument to a known standard.
It helps in identifying and correcting any deviations or errors in the instrument's readings.
Calibration ensures that the instrument is performing within acceptable limits and provides accurate results.
It is necessary to calibrate instrum...
HPLC is a technique used to separate, identify, and quantify components in a mixture based on their interaction with a stationary phase and mobile phase.
HPLC stands for High-Performance Liquid Chromatography.
The principle of HPLC involves the separation of components in a mixture based on their affinity for the stationary phase and mobile phase.
The instrumentation of HPLC includes a pump to deliver the mobile phase, a ...
GC stands for Gas Chromatography, a principle and instrumentation used for separating and analyzing volatile compounds.
GC is a technique used in analytical chemistry to separate and identify components of a mixture.
It involves injecting a sample into a gas chromatograph, which vaporizes the sample and carries it through a column.
The column contains a stationary phase that interacts with the sample components, causing t...
UV spectroscopy is a technique that uses ultraviolet light to analyze the chemical composition of substances.
UV spectroscopy is based on the principle that molecules absorb ultraviolet light at specific wavelengths.
The Beer-Lambert law relates the concentration of a substance to the amount of light it absorbs.
UV spectroscopy is commonly used in pharmaceutical, environmental, and forensic analysis.
It is used to determin...
I applied via Walk-in and was interviewed before Oct 2020. There was 1 interview round.
pH stands for potential of hydrogen.
pH is a measure of the acidity or alkalinity of a solution.
It is a logarithmic scale ranging from 0 to 14.
A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline.
pH is commonly used in various fields such as chemistry, biology, and environmental science.
The aufbau principle is a rule in quantum mechanics that states how electrons fill atomic orbitals.
The principle states that electrons fill the lowest energy levels first before moving to higher energy levels.
It follows the order of filling orbitals: 1s, 2s, 2p, 3s, 3p, 4s, etc.
Each orbital can hold a maximum of two electrons with opposite spins.
For example, the electron configuration of carbon (atomic number 6) is 1s²
Electron pairing occurs after half-filled orbitals in a subshell.
Electron pairing is a phenomenon where two electrons occupy the same orbital.
This occurs after each orbital in a subshell has been half-filled with electrons.
The pairing of electrons is due to the principle of maximum multiplicity.
For example, in the p subshell, electron pairing occurs after the first three orbitals have been half-filled with electrons.
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