Explanation

He did hard work and Succeeded

اس نے سخت محنت کی اور کامیابی حاصل کی۔

The past tense “did” requires a verb in the past tense as well.

So, "succeeded" matches “did hard work.”

Explanation

Iso-octane (2,2,4-trimethylpentane) is assigned an octane number of 100 because it resists knocking in engines.

It serves as the standard reference fuel for high-quality performance in internal combustion engines.

Explanation

Glycine is the simplest and neutral amino acid, with no extra acidic or basic side chains.

It has a hydrogen atom as its side group (R group), making it electrically neutral at physiological pH.

Explanation

The correct phrase is "count on", which means to rely or depend on someone.

The sentence should be: "You may count on my help in this matter."

Explanation

The cisternae are flattened, spherical or tubular membrane-bound sacs found in the endoplasmic reticulum.

They help in transport and modification of proteins and lipids within the cell.

Explanation

The stop codons are :

1. UAA
2. UAG
3. UGA

A stop codon is a sequence of three nucleotides (a trinucleotide) in DNA or messenger RNA (mRNA)

That signals a halt to protein synthesis in the cell.

There are 64 different trinucleotide codons:

• 61 specify amino acids 
• 3 are stop codons
  

Explanation

 Grignard reagent (RMgX) reacts with aldehydes (other than formaldehyde) to form secondary alcohols after acid hydrolysis.  

- With formaldehyde, it gives primary alcohol.  

- With ketones, it gives tertiary alcohol.

Explanation

 Lead tetroxide (Pb₃O₄), also known as red lead, crystallizes in the monoclinic crystal system.

Explanation

Poaceae, also called Gramineae

It is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses

Explanation

In methane (CH₄), the carbon atom forms four sigma bonds with hydrogen atoms.

To form these four equivalent bonds, carbon undergoes sp³ hybridization, resulting in a tetrahedral structure.