Explanation

Gooch crucibles made of borosilicate glass with fritted glass bases 

porcelain is used where ashing at high temperatures is required, and those made of borosilicate glass are adequate for drying.

Explanation

• The force placed between the load and the fulcrum is called Class Three Lever
• ***
•  Class 3 levers used for:
• In a Class Three Lever, the Force is between the Load and the Fulcrum.
• If the Force is closer to the Load, it would be easier to lift, and their mechanical advantage.
• Examples are shovels, fishing rods, human arms and legs, tweezers, and ice tongs.
• A fishing rod is an example of a Class Three Lever.
• ****
• The fulcrum placed between the force and load is called Class One Lever
  

Explanation

• While eating a meal in a wedding ceremony a 45 years old man is choked with a bone in his thrust and his breathing completely stopped. Quickly give him something to eat to clear the obstruction from his airway
• ***
• Give back blows between the shoulders is the first aid to clear the airway obstruction of a one-year-old baby
• ****
• Head Tilt Chin Lift is the correct method to open the airway in Medical Case
• 
  
• The most common cause of upper airway obstruction in an unresponsive patient is: A flaccid Tongue
• 
  
• Opening of the airway using head tilt chin left method in Medical patients.
• 
  
• The airway of a 10-month baby is blocked with a coin. 5 times will you give back blows to clear the airway
• ****

Explanation

In mitochondrial DNA, the codon AGG typically codes for a stop codon. 

Standard genetic code:

• In the standard genetic code, AGG codes for the amino acid arginine. 

Mitochondrial code deviation:

• However, mitochondrial DNA often uses a slightly different genetic code.
• In many mitochondrial genomes, including those of vertebrates, the codons AGA and AGG are reassigned as stop codons, meaning they signal the end of protein translation. 

Explanation

To determine the limiting reagent, use the balanced chemical equation:

C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O

From the equation:

- 1 mole of ethanol reacts with 3 moles of O₂.

You have:

- 2 moles of ethanol

- 6 moles of oxygen

Required O₂ for 2 moles ethanol = 2 × 3 = 6 moles

Since you have exactly 6 moles of O₂, both ethanol and oxygen are completely consumed.

Explanation

 The lifetime of an electron in a metastable state is significantly longer than in an ordinary excited state, typically by 10³ to 10⁵ times. 

Ordinary excited states have lifetimes on the order of 10⁻⁸ seconds. 

Metastable states have lifetimes that can range from microseconds to milliseconds and even longer, being orders of magnitude longer than typical excited states.

Therefore, options like 10³ or 10⁵ are appropriate estimations for how much longer a metastable state lifetime is compared to an ordinary excited state. 

Explanation

 A chromosome is a long, thread-like structure made up of DNA, and within that DNA are smaller segments called genes. 

Explanation

In a step-up transformer, the quantity that remains constant is power. 

Power conservation:

In an ideal transformer, the power input to the primary coil is equal to the power output from the secondary coil, meaning power is conserved. 

Voltage and current change:

While power stays constant, the voltage increases in a step-up transformer, which results in a corresponding decrease in current to maintain the same power output. 

Explanation

A carbonyl group consists of a carbon atom double-bonded to an oxygen atom.

The carbon atom in this group is sp2-hybridized,

Meaning it has three sp2 hybrid orbitals and one p orbital that participate in the formation of the double bond with oxygen

Explanation

In a line absorption spectrum, dark lines are due to transmittance.

In an absorption spectrum, dark lines appear against a continuous background.

These dark lines correspond to wavelengths of light that have been absorbed by the material through which the light passes.

The remaining wavelengths, which are not absorbed, are transmitted and create the bright background.