Q:

In which of the following mammals estrous cycle is absent ?

A) Rabbit	B) Horse
C) Cow	D) Monkey

Answer & Explanation Answer: D) Monkey

Explanation:

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Filed Under: Biology
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19 7224

Q:

Select the antonym of:

skeptic

A) profaner	B) heretic
C) atheist	D) devotee

Answer & Explanation Answer: D) devotee

Explanation:

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0 7221

Q:

What comes down but never goes up?

Answer

Rain is what only comes down but never goes up.

Workspace

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9 7220

Q:

The degree of dissociation ( $α$ ) of a weak electrolyte, $A_{x} B_{y}$ is related to van't Hoff factor (i) by the expression:

$1 . α = \frac{x + y + 1}{i - 1}$

$2 . α = \frac{x + y - 1}{i - 1}$

$3 . α = \frac{i - 1}{x + y + 1}$

$4 . α = \frac{i - 1}{x + y - 1}$

A) 1 is correct	B) 2 is correct
C) 3 is correct	D) 4 is correct

Answer & Explanation Answer: D) 4 is correct

Explanation:

Van't Hoff factor (i) = $\frac{O b s e r v e d C o l l i g a t i v e P r o p e r t y}{N o r m a l C o l l i g a t i v e P r o p e r t y}$

$\begin{matrix} A_{x} B_{y} \\ 1 - α \end{matrix} \to \begin{matrix} x A^{+ y} \\ x α \end{matrix} + \begin{matrix} y B^{- x} \\ y α \end{matrix}$

Total Moles = $1 - α + x α + y α$ = $1 - α (x + y - 1)$

$i = \frac{1 + α (x + y - 1)}{1}$

$\Rightarrow α = \frac{i - 1}{x + y - 1}$

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Filed Under: Chemistry
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6 7218

Q:

Cutaneous respiration occurs in

A) Cockroach	B) Salamander
C) Crab	D) Parrot

Answer & Explanation Answer: B) Salamander

Explanation:

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Filed Under: Biology

45 7214

Q:

Which of these illustrates the Secondary Structure of a Protein?

chemistry1519110232.jpg image

A) A	B) B
C) C	D) D

Answer & Explanation Answer: B) B

Explanation:

The Secondary Structure of a Protein is option B)

The Secondary Structure of a Protein results from Hydrogen Bonds.

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2 7213

Q:

Improve the bracketed part of the sentence.

I went to sleep last night, (almost as soon as) my head hit the pillow.

A) no sooner then	B) as quickly as
C) almost as quickly as	D) no improvement

Answer & Explanation Answer: D) no improvement

Explanation:

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Q:

Correct answer for the given blank out of the four alternatives.

The main failings were of conception and a political willingness to settle _________ easy options. _______________ the expansive declarationsof the need "to maintain effective security of all nuclear materials, _______________ includes nuclear materials used in nuclear weapons”, thesummits narrowed their _______________ to civilian holdings __________________ nonnuclear weapon states.

_______________ the expansive declarations of the need

A) Inspite	B) Since
C) Despite	D) Despite of

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